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| − | == | + | ==Logic Syllabus== |
| − | + | ===Related articles=== | |
| − | |||
| − | < | + | <table style="border:none;width:120%;"> |
| − | < | + | <tr> |
| + | <td style="border:none;width:50%;"> ◾ [[Cactus Language]]</td> | ||
| + | <td style="border:none;width:50%;"> ◾ [[Propositions As Types]]</td> | ||
| + | </tr> | ||
| − | < | + | <tr> |
| − | </ | + | <td style="border:none;width:50%;"> ◾ [[Futures Of Logical Graphs]]</td> |
| + | <td style="border:none;width:50%;"> ◾ [[Propositional Equation Reasoning Systems]]</td> | ||
| + | </tr> | ||
| − | = | + | <tr><td style="border:none;"></td></tr> |
| − | {| align="center" cellpadding=" | + | <tr> |
| − | | | + | <td style="border:none;width:50%;"> ◾ [[Correspondence Theory Of Truth]]</td> |
| − | | | + | <td style="border:none;width:50%;"> ◾ [[Pragmatic Theory Of Truth]]</td> |
| + | </tr> | ||
| + | |||
| + | <tr><td style="border:none;"></td></tr> | ||
| + | |||
| + | <tr> | ||
| + | <td style="border:none;width:50%;"> ◾ [[Differential Logic • Introduction]]</td> | ||
| + | <td style="border:none;width:50%;"> ◾ [[Introduction to Inquiry Driven Systems]]</td> | ||
| + | </tr> | ||
| + | |||
| + | <tr> | ||
| + | <td style="border:none;width:50%;"> ◾ [[Differential Propositional Calculus]]</td> | ||
| + | <td style="border:none;width:50%;"> ◾ [[Prospects for Inquiry Driven Systems]]</td> | ||
| + | </tr> | ||
| + | |||
| + | <tr> | ||
| + | <td style="border:none;width:50%;"> ◾ [[Differential Logic and Dynamic Systems]]</td> | ||
| + | <td style="border:none;width:50%;"> ◾ [[Inquiry Driven Systems • Inquiry Into Inquiry]]</td> | ||
| + | </tr> | ||
| + | |||
| + | </table> | ||
| + | |||
| + | ==Logical Cacti • Theme One Exposition== | ||
| + | |||
| + | Up till now we've been working to hammer out a two-edged sword of syntax, honing the syntax of ''painted and rooted cacti and expressions'' (PARCAE), and turning it to use in taming the syntax of two-level formal languages. | ||
| + | |||
| + | But the purpose of a logical syntax is to support a logical semantics, which means, for starters, to bear interpretation as sentential signs that can denote objective propositions about some universe of objects. | ||
| + | |||
| + | One of the difficulties that we face in this discussion is that the words ''interpretation'', ''meaning'', ''semantics'', and so on will have so many different meanings from one moment to the next of their use. A dedicated neologician might be able to think up distinctive names for all of the aspects of meaning and all of the approaches to them that will concern us here, but I will just have to do the best that I can with the common lot of ambiguous terms, leaving it to context and the intelligent interpreter to sort it out as much as possible. | ||
| + | |||
| + | As it happens, the language of cacti is so abstract that it can bear at least two different interpretations as logical sentences denoting logical propositions. The two interpretations that I know about are descended from the ones that C.S. Peirce called the ''entitative'' and the ''existential'' interpretations of his systems of graphical logics. For our present aims, I shall briefly introduce the alternatives and then quickly move to the existential interpretation of logical cacti. | ||
| + | |||
| + | ===Existential Interpretation=== | ||
| + | |||
| + | Table 13 illustrates the ''existential interpretation'' of cactus graphs and cactus expressions by providing English translations for a few of the most basic and commonly occurring forms. | ||
| + | |||
| + | {| align="center" border="1" cellpadding="8" cellspacing="0" style="text-align:center; width:80%" | ||
| + | |+ style="height:30px" | | ||
| + | <math>\text{Table 13.} ~~ \text{Existential Interpretation}</math> | ||
| + | |- style="height:40px; background:#f0f0ff" | ||
| + | | <math>\text{Cactus Graph}</math> | ||
| + | | <math>\text{Cactus Expression}</math> | ||
| + | | <math>\text{Interpretation}</math> | ||
| + | |- | ||
| + | | height="100px" | [[File:Cactus Graph Node Big.jpg|24px]] | ||
| + | | <math>\mathrm{~}</math> | ||
| + | | <math>\mathrm{true}</math> | ||
| + | |- | ||
| + | | height="100px" | [[File:Cactus Graph Spike Big.jpg|24px]] | ||
| + | | <math>\texttt{(} ~ \texttt{)}</math> | ||
| + | | <math>\mathrm{false}</math> | ||
| + | |- | ||
| + | | height="100px" | [[File:Cactus A Big.jpg|20px]] | ||
| + | | <math>a</math> | ||
| + | | <math>a</math> | ||
|- | |- | ||
| − | | | + | | height="120px" | [[File:Cactus (A) Big.jpg|20px]] |
| − | + | | <math>\texttt{(} a \texttt{)}</math> | |
| + | | | ||
| + | <math>\begin{matrix} | ||
| + | \tilde{a} | ||
| + | \\[2pt] | ||
| + | a^\prime | ||
| + | \\[2pt] | ||
| + | \lnot a | ||
| + | \\[2pt] | ||
| + | \mathrm{not}~ a | ||
| + | \end{matrix}</math> | ||
|- | |- | ||
| − | | | + | | height="100px" | [[File:Cactus ABC Big.jpg|50px]] |
| − | + | | <math>a~b~c</math> | |
| + | | | ||
| + | <math>\begin{matrix} | ||
| + | a \land b \land c | ||
| + | \\[6pt] | ||
| + | a ~\mathrm{and}~ b ~\mathrm{and}~ c | ||
| + | \end{matrix}</math> | ||
|- | |- | ||
| − | | | + | | height="160px" | [[File:Cactus ((A)(B)(C)) Big.jpg|65px]] |
| − | + | | <math>\texttt{((} a \texttt{)(} b \texttt{)(} c \texttt{))}</math> | |
| + | | | ||
| + | <math>\begin{matrix} | ||
| + | a \lor b \lor c | ||
| + | \\[6pt] | ||
| + | a ~\mathrm{or}~ b ~\mathrm{or}~ c | ||
| + | \end{matrix}</math> | ||
|- | |- | ||
| − | | | + | | height="120px" | [[File:Cactus (A(B)) Big.jpg|60px]] |
| − | + | | <math>\texttt{(} a \texttt{(} b \texttt{))}</math> | |
| − | |} | + | | |
| − | + | <math>\begin{matrix} | |
| − | + | a \Rightarrow b | |
| − | + | \\[2pt] | |
| − | + | a ~\mathrm{implies}~ b | |
| − | + | \\[2pt] | |
| − | { | + | \mathrm{if}~ a ~\mathrm{then}~ b |
| − | + | \\[2pt] | |
| + | \mathrm{not}~ a ~\mathrm{without}~ b | ||
| + | \end{matrix}</math> | ||
|- | |- | ||
| − | | [[File:Cactus | + | | height="120px" | [[File:Cactus (A,B) Big.jpg|65px]] |
| − | + | | <math>\texttt{(} a, b \texttt{)}</math> | |
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| | | | ||
| − | + | <math>\begin{matrix} | |
| − | + | a + b | |
| − | + | \\[2pt] | |
| − | + | a \neq b | |
| − | + | \\[2pt] | |
| + | a ~\mathrm{exclusive~or}~ b | ||
| + | \\[2pt] | ||
| + | a ~\mathrm{not~equal~to}~ b | ||
| + | \end{matrix}</math> | ||
|- | |- | ||
| + | | height="160px" | [[File:Cactus ((A,B)) Big.jpg|65px]] | ||
| + | | <math>\texttt{((} a, b \texttt{))}</math> | ||
| | | | ||
| − | + | <math>\begin{matrix} | |
| − | + | a = b | |
| − | + | \\[2pt] | |
| − | + | a \iff b | |
| + | \\[2pt] | ||
| + | a ~\mathrm{equals}~ b | ||
| + | \\[2pt] | ||
| + | a ~\mathrm{if~and~only~if}~ b | ||
| + | \end{matrix}</math> | ||
|- | |- | ||
| − | | | + | | height="120px" | [[File:Cactus (A,B,C) Big.jpg|65px]] |
| − | | | + | | <math>\texttt{(} a, b, c \texttt{)}</math> |
| − | + | | | |
| − | + | <math>\begin{matrix} | |
| + | \mathrm{just~one~of} | ||
| + | \\ | ||
| + | a, b, c | ||
| + | \\ | ||
| + | \mathrm{is~false} | ||
| + | \end{matrix}</math> | ||
|- | |- | ||
| + | | height="160px" | [[File:Cactus ((A),(B),(C)) Big.jpg|65px]] | ||
| + | | <math>\texttt{((} a \texttt{)}, \texttt{(} b \texttt{)}, \texttt{(} c \texttt{))}</math> | ||
| | | | ||
| − | + | <math>\begin{matrix} | |
| − | + | \mathrm{just~one~of} | |
| − | + | \\ | |
| − | + | a, b, c | |
| + | \\ | ||
| + | \mathrm{is~true} | ||
| + | \end{matrix}</math> | ||
|- | |- | ||
| − | | | + | | height="160px" | [[File:Cactus (A,(B),(C)) Big.jpg|65px]] |
| − | | | + | | <math>\texttt{(} a, \texttt{(} b \texttt{)}, \texttt{(} c \texttt{))}</math> |
| − | + | | | |
| − | + | <math>\begin{matrix} | |
| + | \mathrm{genus}~ a ~\mathrm{of~species}~ b, c | ||
| + | \\[6pt] | ||
| + | \mathrm{partition}~ a ~\mathrm{into}~ b, c | ||
| + | \\[6pt] | ||
| + | \mathrm{pie}~ a ~\mathrm{of~slices}~ b, c | ||
| + | \end{matrix}</math> | ||
|} | |} | ||
| − | + | ===Entitative Interpretation=== | |
| − | + | Table 14 illustrates the ''entitative interpretation'' of cactus graphs and cactus expressions by providing English translations for a few of the most basic and commonly occurring forms. | |
| − | + | {| align="center" border="1" cellpadding="8" cellspacing="0" style="text-align:center; width:80%" | |
| − | + | |+ style="height:30px" | | |
| − | {| align="center" | + | <math>\text{Table 14.} ~~ \text{Entitative Interpretation}</math> |
| − | | style="height: | + | |- style="height:40px; background:#f0f0ff" |
| + | | <math>\text{Cactus Graph}</math> | ||
| + | | <math>\text{Cactus Expression}</math> | ||
| + | | <math>\text{Interpretation}</math> | ||
| + | |- | ||
| + | | height="100px" | [[File:Cactus Graph Node Big.jpg|24px]] | ||
| + | | <math>\mathrm{~}</math> | ||
| + | | <math>\mathrm{false}</math> | ||
| + | |- | ||
| + | | height="100px" | [[File:Cactus Graph Spike Big.jpg|24px]] | ||
| + | | <math>\texttt{(} ~ \texttt{)}</math> | ||
| + | | <math>\mathrm{true}</math> | ||
| + | |- | ||
| + | | height="100px" | [[File:Cactus A Big.jpg|20px]] | ||
| + | | <math>a</math> | ||
| + | | <math>a</math> | ||
| + | |- | ||
| + | | height="120px" | [[File:Cactus (A) Big.jpg|20px]] | ||
| + | | <math>\texttt{(} a \texttt{)}</math> | ||
| + | | | ||
| + | <math>\begin{matrix} | ||
| + | \tilde{a} | ||
| + | \\[2pt] | ||
| + | a^\prime | ||
| + | \\[2pt] | ||
| + | \lnot a | ||
| + | \\[2pt] | ||
| + | \mathrm{not}~ a | ||
| + | \end{matrix}</math> | ||
| + | |- | ||
| + | | height="100px" | [[File:Cactus ABC Big.jpg|50px]] | ||
| + | | <math>a~b~c</math> | ||
| + | | | ||
| + | <math>\begin{matrix} | ||
| + | a \lor b \lor c | ||
| + | \\[6pt] | ||
| + | a ~\mathrm{or}~ b ~\mathrm{or}~ c | ||
| + | \end{matrix}</math> | ||
| + | |- | ||
| + | | height="160px" | [[File:Cactus ((A)(B)(C)) Big.jpg|65px]] | ||
| + | | <math>\texttt{((} a \texttt{)(} b \texttt{)(} c \texttt{))}</math> | ||
| + | | | ||
| + | <math>\begin{matrix} | ||
| + | a \land b \land c | ||
| + | \\[6pt] | ||
| + | a ~\mathrm{and}~ b ~\mathrm{and}~ c | ||
| + | \end{matrix}</math> | ||
|- | |- | ||
| − | | [[File:Cactus | + | | height="120px" | [[File:Cactus (A)B Big.jpg|35px]] |
| − | + | | <math>\texttt{(} a \texttt{)} b</math> | |
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| | | | ||
| − | + | <math>\begin{matrix} | |
| − | + | a \Rightarrow b | |
| − | + | \\[2pt] | |
| − | + | a ~\mathrm{implies}~ b | |
| − | + | \\[2pt] | |
| − | + | \mathrm{if}~ a ~\mathrm{then}~ b | |
| − | + | \\[2pt] | |
| + | \mathrm{not}~ a, ~\mathrm{or}~ b | ||
| + | \end{matrix}</math> | ||
|- | |- | ||
| + | | height="120px" | [[File:Cactus (A,B) Big.jpg|65px]] | ||
| + | | <math>\texttt{(} a, b \texttt{)}</math> | ||
| | | | ||
| − | + | <math>\begin{matrix} | |
| − | + | a = b | |
| − | + | \\[2pt] | |
| − | + | a \iff b | |
| − | + | \\[2pt] | |
| − | + | a ~\mathrm{equals}~ b | |
| − | + | \\[2pt] | |
| + | a ~\mathrm{if~and~only~if}~ b | ||
| + | \end{matrix}</math> | ||
|- | |- | ||
| + | | height="160px" | [[File:Cactus ((A,B)) Big.jpg|65px]] | ||
| + | | <math>\texttt{((} a, b \texttt{))}</math> | ||
| | | | ||
| − | + | <math>\begin{matrix} | |
| − | + | a + b | |
| − | + | \\[2pt] | |
| − | + | a \neq b | |
| − | + | \\[2pt] | |
| − | + | a ~\mathrm{exclusive~or}~ b | |
| + | \\[2pt] | ||
| + | a ~\mathrm{not~equal~to}~ b | ||
| + | \end{matrix}</math> | ||
|- | |- | ||
| − | | | + | | height="120px" | [[File:Cactus (A,B,C) Big.jpg|65px]] |
| − | | | + | | <math>\texttt{(} a, b, c \texttt{)}</math> |
| − | + | | | |
| − | + | <math>\begin{matrix} | |
| − | + | \mathrm{not~just~one~of} | |
| − | + | \\ | |
| + | a, b, c | ||
| + | \\ | ||
| + | \mathrm{is~true} | ||
| + | \end{matrix}</math> | ||
|- | |- | ||
| + | | height="160px" | [[File:Cactus ((A,B,C)) Big.jpg|65px]] | ||
| + | | <math>\texttt{((} a, b, c \texttt{))}</math> | ||
| | | | ||
| − | + | <math>\begin{matrix} | |
| − | + | \mathrm{just~one~of} | |
| − | + | \\ | |
| − | + | a, b, c | |
| − | + | \\ | |
| − | + | \mathrm{is~true} | |
| + | \end{matrix}</math> | ||
|- | |- | ||
| − | | | + | | height="200px" | [[File:Cactus (((A),B,C)) Big.jpg|65px]] |
| − | | | + | | <math>\texttt{(((} a \texttt{)}, b, c \texttt{))}</math> |
| − | + | | | |
| − | + | <math>\begin{matrix} | |
| − | + | \mathrm{genus}~ a ~\mathrm{of~species}~ b, c | |
| − | + | \\[6pt] | |
| + | \mathrm{partition}~ a ~\mathrm{into}~ b, c | ||
| + | \\[6pt] | ||
| + | \mathrm{pie}~ a ~\mathrm{of~slices}~ b, c | ||
| + | \end{matrix}</math> | ||
|} | |} | ||
| − | + | ==Logical Graphs== | |
| − | == | + | ===Old Versions=== |
| − | === | + | ====Example 1==== |
| − | {| align="center" | + | {| align="center" cellpadding="10" |
| − | | | + | | |
| − | |- | + | <pre> |
| − | | | + | o-----------------------------------------------------------o |
| + | | | | ||
| + | | o o o o o o | | ||
| + | | \| | | | | | | ||
| + | | o o o o o o o o o | | ||
| + | | \|/ \|/ |/ | | | ||
| + | | @ = @ = @ = @ | | ||
| + | | | | ||
| + | o-----------------------------------------------------------o | ||
| + | | | | ||
| + | | (()())(())() = (())(())() = (())() = ( ) | | ||
| + | | | | ||
| + | o-----------------------------------------------------------o | ||
| + | </pre> | ||
|} | |} | ||
| − | === | + | ====Example 2==== |
| − | {| align="center | + | {| align="center" cellpadding="10" |
| − | |||
| − | |||
| | | | ||
| − | + | <pre> | |
| − | | | + | o-------------------o-------------------o-------------------o |
| − | | | + | | Object | Sign | Interpretant | |
| − | + | o-------------------o-------------------o-------------------o | |
| − | | | + | | | | | |
| − | | | + | | Falsity | "(()())(())()" | "(())(())()" | |
| + | | | | | | ||
| + | | Falsity | "(())(())()" | "(())()" | | ||
| + | | | | | | ||
| + | | Falsity | "(())()" | "()" | | ||
| + | | | | | | ||
| + | o-------------------o-------------------o-------------------o | ||
| + | </pre> | ||
|} | |} | ||
| − | | | + | |
| + | ====Example 3==== | ||
| + | |||
| + | {| align="center" cellpadding="10" | ||
| | | | ||
| − | + | <pre> | |
| − | | | + | o-------------------o-------------------o-------------------o |
| − | | | + | | Object | Sign | Interpretant | |
| − | | | + | o-------------------o-------------------o-------------------o |
| − | | | + | | | | | |
| − | | | + | | Falsity | "(()())(())()" | "(()())(())()" | |
| + | | | | | | ||
| + | | Falsity | "(()())(())()" | "(())(())()" | | ||
| + | | | | | | ||
| + | | Falsity | "(()())(())()" | "(())()" | | ||
| + | | | | | | ||
| + | | Falsity | "(()())(())()" | "()" | | ||
| + | | | | | | ||
| + | o-------------------o-------------------o-------------------o | ||
| + | | | | | | ||
| + | | Falsity | "(())(())()" | "(()())(())()" | | ||
| + | | | | | | ||
| + | | Falsity | "(())(())()" | "(())(())()" | | ||
| + | | | | | | ||
| + | | Falsity | "(())(())()" | "(())()" | | ||
| + | | | | | | ||
| + | | Falsity | "(())(())()" | "()" | | ||
| + | | | | | | ||
| + | o-------------------o-------------------o-------------------o | ||
| + | | | | | | ||
| + | | Falsity | "(())()" | "(()())(())()" | | ||
| + | | | | | | ||
| + | | Falsity | "(())()" | "(())(())()" | | ||
| + | | | | | | ||
| + | | Falsity | "(())()" | "(())()" | | ||
| + | | | | | | ||
| + | | Falsity | "(())()" | "()" | | ||
| + | | | | | | ||
| + | o-------------------o-------------------o-------------------o | ||
| + | | | | | | ||
| + | | Falsity | "()" | "(()())(())()" | | ||
| + | | | | | | ||
| + | | Falsity | "()" | "(())(())()" | | ||
| + | | | | | | ||
| + | | Falsity | "()" | "(())()" | | ||
| + | | | | | | ||
| + | | Falsity | "()" | "()" | | ||
| + | | | | | | ||
| + | o-------------------o-------------------o-------------------o | ||
| + | </pre> | ||
|} | |} | ||
| − | | | + | |
| + | ====Example 4==== | ||
| + | |||
| + | {| align="center" cellpadding="10" | ||
| | | | ||
| − | + | <pre> | |
| − | | | + | o-------------------o-------------------o-------------------o |
| − | | | + | | a | b | (a , b) | |
| − | | | + | o-------------------o-------------------o-------------------o |
| − | | | + | | | | | |
| − | | | + | | blank | blank | cross | |
| − | | | + | | | | | |
| − | | | + | | blank | cross | blank | |
| − | | | + | | | | | |
| − | | | + | | cross | blank | blank | |
| − | | | + | | | | | |
| − | | | + | | cross | cross | cross | |
| + | | | | | | ||
| + | o-------------------o-------------------o-------------------o | ||
| + | </pre> | ||
|} | |} | ||
| − | | | + | |
| + | ====Example 5==== | ||
| + | |||
| + | {| align="center" cellpadding="10" | ||
| | | | ||
| − | + | <pre> | |
| − | | | + | o-------o-------o-------o-----------o |
| − | | | + | | a | b | c | (a, b, c) | |
| − | | | + | o-------o-------o-------o-----------o |
| − | | | + | | | | | | |
| − | | | + | | blank | blank | blank | cross | |
| − | | | + | | | | | | |
| − | | | + | | blank | blank | cross | blank | |
| − | | | + | | | | | | |
| − | | | + | | blank | cross | blank | blank | |
| − | | | + | | | | | | |
| − | | | + | | blank | cross | cross | cross | |
| + | | | | | | | ||
| + | | cross | blank | blank | blank | | ||
| + | | | | | | | ||
| + | | cross | blank | cross | cross | | ||
| + | | | | | | | ||
| + | | cross | cross | blank | cross | | ||
| + | | | | | | | ||
| + | | cross | cross | cross | cross | | ||
| + | | | | | | | ||
| + | o-------o-------o-------o-----------o | ||
| + | </pre> | ||
|} | |} | ||
| + | |||
| + | ====Example 6==== | ||
| + | |||
| + | {| align="center" cellpadding="10" | ||
| + | | | ||
| + | <pre> | ||
| + | o-------o-------o-------o-----------o | ||
| + | | a | b | c | (a, b, c) | | ||
| + | o-------o-------o-------o-----------o | ||
| + | | | | | | | ||
| + | | o | o | o | | | | ||
| + | | | | | | | ||
| + | | o | o | | | o | | ||
| + | | | | | | | ||
| + | | o | | | o | o | | ||
| + | | | | | | | ||
| + | | o | | | | | | | | ||
| + | | | | | | | ||
| + | | | | o | o | o | | ||
| + | | | | | | | ||
| + | | | | o | | | | | | ||
| + | | | | | | | ||
| + | | | | | | o | | | | ||
| + | | | | | | | ||
| + | | | | | | | | | | | ||
| + | | | | | | | ||
| + | o-------o-------o-------o-----------o | ||
| + | </pre> | ||
|} | |} | ||
| − | + | ===New Versions=== | |
| + | |||
| + | ====Example 1==== | ||
| − | + | … | |
| − | === | + | ====Example 2a==== |
| − | {| align="center" cellpadding=" | + | {| align="center" border="1" cellpadding="12" cellspacing="0" width="50%" |
| − | | | + | |- style="background:ghostwhite; height:40px" |
| + | | width="33%" | <math>\text{Object}</math> | ||
| + | | width="33%" | <math>\text{Sign}</math> | ||
| + | | width="33%" | <math>\text{Interpretant}</math> | ||
| + | |- | ||
| + | | <math>\mathrm{Falsity}</math> | ||
| + | | <math>{}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime}</math> | ||
| + | | <math>{}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime}</math> | ||
|- | |- | ||
| − | | | + | | <math>\mathrm{Falsity}</math> |
| + | | <math>{}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime}</math> | ||
| + | | <math>{}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime}</math> | ||
| + | |- | ||
| + | | <math>\mathrm{Falsity}</math> | ||
| + | | <math>{}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime}</math> | ||
| + | | <math>{}^{\backprime\backprime} \texttt{()} {}^{\prime\prime}</math> | ||
|} | |} | ||
| − | === | + | ====Example 2b==== |
| − | {| align="center" border="1" cellpadding=" | + | {| align="center" border="1" cellpadding="12" cellspacing="0" width="50%" |
| − | | | + | |- style="background:ghostwhite; height:40px" |
| − | + | | width="33%" | <math>\text{Object}</math> | |
| − | | width=" | + | | width="33%" | <math>\text{Sign}</math> |
| − | | width=" | + | | width="33%" | <math>\text{Interpretant}</math> |
| − | | width=" | ||
| − | |||
|- | |- | ||
| − | | <math> | + | | valign="bottom" | |
| − | | <math> | + | <math>\begin{array}{l} |
| − | + | \mathrm{Falsity} | |
| − | + | \\[6pt] | |
| − | | | + | \mathrm{Falsity} |
| − | + | \\[6pt] | |
| − | + | \mathrm{Falsity} | |
| − | + | \end{array}</math> | |
| − | + | | valign="bottom" | | |
| + | <math>\begin{array}{l} | ||
| + | {}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} | ||
| + | \end{array}</math> | ||
| + | | valign="bottom" | | ||
| + | <math>\begin{array}{l} | ||
| + | {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{()} {}^{\prime\prime} | ||
| + | \end{array}</math> | ||
|} | |} | ||
| − | == | + | ====Example 3==== |
| − | + | {| align="center" border="1" cellpadding="12" cellspacing="0" width="50%" | |
| − | + | |- style="background:ghostwhite; height:40px" | |
| − | + | | width="33%" | <math>\text{Object}</math> | |
| − | + | | width="33%" | <math>\text{Sign}</math> | |
| − | {| align="center" border="1" cellpadding=" | + | | width="33%" | <math>\text{Interpretant}</math> |
| − | | | ||
| − | |||
| − | | width=" | ||
| − | | width=" | ||
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| − | | width=" | ||
| − | |||
| − | |||
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| − | |||
| − | |||
|- | |- | ||
| − | | <math> | + | | valign="bottom" | |
| − | | <math> | + | <math>\begin{array}{l} |
| − | | <math> | + | \mathrm{Falsity} |
| − | + | \\[6pt] | |
| − | + | \mathrm{Falsity} | |
| + | \\[6pt] | ||
| + | \mathrm{Falsity} | ||
| + | \\[6pt] | ||
| + | \mathrm{Falsity} | ||
| + | \end{array}</math> | ||
| + | | valign="bottom" | | ||
| + | <math>\begin{array}{l} | ||
| + | {}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime} | ||
| + | \end{array}</math> | ||
| + | | valign="bottom" | | ||
| + | <math>\begin{array}{l} | ||
| + | {}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{()} {}^{\prime\prime} | ||
| + | \end{array}</math> | ||
|- | |- | ||
| − | | <math> | + | | valign="bottom" | |
| − | | <math> | + | <math>\begin{array}{l} |
| − | | <math> | + | \mathrm{Falsity} |
| − | + | \\[6pt] | |
| − | + | \mathrm{Falsity} | |
| + | \\[6pt] | ||
| + | \mathrm{Falsity} | ||
| + | \\[6pt] | ||
| + | \mathrm{Falsity} | ||
| + | \end{array}</math> | ||
| + | | valign="bottom" | | ||
| + | <math>\begin{array}{l} | ||
| + | {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} | ||
| + | \end{array}</math> | ||
| + | | valign="bottom" | | ||
| + | <math>\begin{array}{l} | ||
| + | {}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{()} {}^{\prime\prime} | ||
| + | \end{array}</math> | ||
|- | |- | ||
| − | | <math> | + | | valign="bottom" | |
| − | | <math> | + | <math>\begin{array}{l} |
| − | | <math> | + | \mathrm{Falsity} |
| − | + | \\[6pt] | |
| − | + | \mathrm{Falsity} | |
| + | \\[6pt] | ||
| + | \mathrm{Falsity} | ||
| + | \\[6pt] | ||
| + | \mathrm{Falsity} | ||
| + | \end{array}</math> | ||
| + | | valign="bottom" | | ||
| + | <math>\begin{array}{l} | ||
| + | {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} | ||
| + | \end{array}</math> | ||
| + | | valign="bottom" | | ||
| + | <math>\begin{array}{l} | ||
| + | {}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{()} {}^{\prime\prime} | ||
| + | \end{array}</math> | ||
|- | |- | ||
| − | | <math> | + | | valign="bottom" | |
| − | | <math> | + | <math>\begin{array}{l} |
| − | | <math> | + | \mathrm{Falsity} |
| − | + | \\[6pt] | |
| − | + | \mathrm{Falsity} | |
| + | \\[6pt] | ||
| + | \mathrm{Falsity} | ||
| + | \\[6pt] | ||
| + | \mathrm{Falsity} | ||
| + | \end{array}</math> | ||
| + | | valign="bottom" | | ||
| + | <math>\begin{array}{l} | ||
| + | {}^{\backprime\backprime} \texttt{()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{()} {}^{\prime\prime} | ||
| + | \end{array}</math> | ||
| + | | valign="bottom" | | ||
| + | <math>\begin{array}{l} | ||
| + | {}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} | ||
| + | \\[6pt] | ||
| + | {}^{\backprime\backprime} \texttt{()} {}^{\prime\prime} | ||
| + | \end{array}</math> | ||
|} | |} | ||
| − | < | + | ====Example 4==== |
| + | |||
| + | {| align="center" border="1" cellpadding="12" cellspacing="0" style="text-align:center; width:50%" | ||
| + | |- style="background:ghostwhite; height:40px" | ||
| + | | width="33%" | <math>a</math> | ||
| + | | width="33%" | <math>b</math> | ||
| + | | width="33%" | <math>\texttt{(} a \texttt{,} b \texttt{)}</math> | ||
| + | |- | ||
| + | | valign="bottom" | | ||
| + | <math>\begin{matrix} | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \end{matrix}</math> | ||
| + | | valign="bottom" | | ||
| + | <math>\begin{matrix} | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \\[6pt] | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \end{matrix}</math> | ||
| + | | valign="bottom" | | ||
| + | <math>\begin{matrix} | ||
| + | \texttt{Cross} | ||
| + | \\[6pt] | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \end{matrix}</math> | ||
| + | |} | ||
| − | == | + | ====Example 5==== |
| − | === | + | {| align="center" border="1" cellpadding="12" cellspacing="0" style="text-align:center; width:50%" |
| + | |- style="background:ghostwhite; height:40px" | ||
| + | | width="25%" | <math>a</math> | ||
| + | | width="25%" | <math>b</math> | ||
| + | | width="25%" | <math>c</math> | ||
| + | | width="25%" | <math>\texttt{(} a \texttt{,} b \texttt{,} \texttt{c} \texttt{)}</math> | ||
| + | |- | ||
| + | | valign="bottom" | | ||
| + | <math>\begin{matrix} | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \end{matrix}</math> | ||
| + | | valign="bottom" | | ||
| + | <math>\begin{matrix} | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \\[6pt] | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \end{matrix}</math> | ||
| + | | valign="bottom" | | ||
| + | <math>\begin{matrix} | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \\[6pt] | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \\[6pt] | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \\[6pt] | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \end{matrix}</math> | ||
| + | | valign="bottom" | | ||
| + | <math>\begin{matrix} | ||
| + | \texttt{Cross} | ||
| + | \\[6pt] | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \\[6pt] | ||
| + | \texttt{Blank} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \\[6pt] | ||
| + | \texttt{Cross} | ||
| + | \end{matrix}</math> | ||
| + | |} | ||
| − | === | + | ====Example 6==== |
| − | {| align="center" border="1" cellpadding=" | + | {| align="center" border="1" cellpadding="12" cellspacing="0" style="text-align:center; width:50%" |
| − | + | |- style="background:ghostwhite; height:40px" | |
| − | |- style=" | + | | width="25%" | <math>a</math> |
| − | + | | width="25%" | <math>b</math> | |
| − | + | | width="25%" | <math>c</math> | |
| − | + | | width="25%" | <math>\texttt{(} a \texttt{,} b \texttt{,} \texttt{c} \texttt{)}</math> | |
| − | |||
| − | |||
| − | | width=" | ||
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| − | | <math>\texttt{(} | ||
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| − | |||
|- | |- | ||
| − | | | + | | valign="bottom" | |
| − | + | <math>\begin{matrix} | |
| − | + | \texttt{o} | |
| − | + | \\[6pt] | |
| − | + | \texttt{o} | |
| − | + | \\[6pt] | |
| − | + | \texttt{o} | |
| − | + | \\[6pt] | |
| − | + | \texttt{o} | |
| − | + | \\[6pt] | |
| − | + | \texttt{|} | |
| − | + | \\[6pt] | |
| − | + | \texttt{|} | |
| − | + | \\[6pt] | |
| − | + | \texttt{|} | |
| − | + | \\[6pt] | |
| − | + | \texttt{|} | |
| − | | | + | \end{matrix}</math> |
| − | + | | valign="bottom" | | |
| − | + | <math>\begin{matrix} | |
| − | + | \texttt{o} | |
| − | + | \\[6pt] | |
| − | + | \texttt{o} | |
| − | + | \\[6pt] | |
| − | | | + | \texttt{|} |
| − | + | \\[6pt] | |
| − | | | + | \texttt{|} |
| − | + | \\[6pt] | |
| − | + | \texttt{o} | |
| − | | | + | \\[6pt] |
| − | + | \texttt{o} | |
| − | + | \\[6pt] | |
| − | + | \texttt{|} | |
| − | | | + | \\[6pt] |
| − | + | \texttt{|} | |
| − | | | + | \end{matrix}</math> |
| − | + | | valign="bottom" | | |
| − | + | <math>\begin{matrix} | |
| − | + | \texttt{o} | |
| − | + | \\[6pt] | |
| − | + | \texttt{|} | |
| − | | | + | \\[6pt] |
| − | + | \texttt{o} | |
| − | + | \\[6pt] | |
| − | + | \texttt{|} | |
| − | + | \\[6pt] | |
| − | | | + | \texttt{o} |
| − | + | \\[6pt] | |
| − | + | \texttt{|} | |
| − | + | \\[6pt] | |
| − | + | \texttt{o} | |
| − | + | \\[6pt] | |
| − | | | + | \texttt{|} |
| − | | | + | \end{matrix}</math> |
| − | + | | valign="bottom" | | |
| − | + | <math>\begin{matrix} | |
| − | + | \texttt{|} | |
| − | + | \\[6pt] | |
| − | + | \texttt{o} | |
| − | + | \\[6pt] | |
| − | + | \texttt{o} | |
| − | + | \\[6pt] | |
| − | + | \texttt{|} | |
| − | + | \\[6pt] | |
| − | + | \texttt{o} | |
| − | | | + | \\[6pt] |
| − | + | \texttt{|} | |
| − | + | \\[6pt] | |
| − | + | \texttt{|} | |
| − | + | \\[6pt] | |
| − | + | \texttt{|} | |
| − | + | \end{matrix}</math> | |
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Latest revision as of 13:54, 12 March 2026
Logic Syllabus
Related articles
Logical Cacti • Theme One Exposition
Up till now we've been working to hammer out a two-edged sword of syntax, honing the syntax of painted and rooted cacti and expressions (PARCAE), and turning it to use in taming the syntax of two-level formal languages.
But the purpose of a logical syntax is to support a logical semantics, which means, for starters, to bear interpretation as sentential signs that can denote objective propositions about some universe of objects.
One of the difficulties that we face in this discussion is that the words interpretation, meaning, semantics, and so on will have so many different meanings from one moment to the next of their use. A dedicated neologician might be able to think up distinctive names for all of the aspects of meaning and all of the approaches to them that will concern us here, but I will just have to do the best that I can with the common lot of ambiguous terms, leaving it to context and the intelligent interpreter to sort it out as much as possible.
As it happens, the language of cacti is so abstract that it can bear at least two different interpretations as logical sentences denoting logical propositions. The two interpretations that I know about are descended from the ones that C.S. Peirce called the entitative and the existential interpretations of his systems of graphical logics. For our present aims, I shall briefly introduce the alternatives and then quickly move to the existential interpretation of logical cacti.
Existential Interpretation
Table 13 illustrates the existential interpretation of cactus graphs and cactus expressions by providing English translations for a few of the most basic and commonly occurring forms.
| \(\text{Cactus Graph}\) | \(\text{Cactus Expression}\) | \(\text{Interpretation}\) |
| 24px | \(\mathrm{~}\) | \(\mathrm{true}\) |
| 24px | \(\texttt{(} ~ \texttt{)}\) | \(\mathrm{false}\) |
| \(a\) | \(a\) | |
| \(\texttt{(} a \texttt{)}\) |
\(\begin{matrix} \tilde{a} \\[2pt] a^\prime \\[2pt] \lnot a \\[2pt] \mathrm{not}~ a \end{matrix}\) | |
| \(a~b~c\) |
\(\begin{matrix} a \land b \land c \\[6pt] a ~\mathrm{and}~ b ~\mathrm{and}~ c \end{matrix}\) | |
| \(\texttt{((} a \texttt{)(} b \texttt{)(} c \texttt{))}\) |
\(\begin{matrix} a \lor b \lor c \\[6pt] a ~\mathrm{or}~ b ~\mathrm{or}~ c \end{matrix}\) | |
| \(\texttt{(} a \texttt{(} b \texttt{))}\) |
\(\begin{matrix} a \Rightarrow b \\[2pt] a ~\mathrm{implies}~ b \\[2pt] \mathrm{if}~ a ~\mathrm{then}~ b \\[2pt] \mathrm{not}~ a ~\mathrm{without}~ b \end{matrix}\) | |
| \(\texttt{(} a, b \texttt{)}\) |
\(\begin{matrix} a + b \\[2pt] a \neq b \\[2pt] a ~\mathrm{exclusive~or}~ b \\[2pt] a ~\mathrm{not~equal~to}~ b \end{matrix}\) | |
| \(\texttt{((} a, b \texttt{))}\) |
\(\begin{matrix} a = b \\[2pt] a \iff b \\[2pt] a ~\mathrm{equals}~ b \\[2pt] a ~\mathrm{if~and~only~if}~ b \end{matrix}\) | |
| \(\texttt{(} a, b, c \texttt{)}\) |
\(\begin{matrix} \mathrm{just~one~of} \\ a, b, c \\ \mathrm{is~false} \end{matrix}\) | |
| \(\texttt{((} a \texttt{)}, \texttt{(} b \texttt{)}, \texttt{(} c \texttt{))}\) |
\(\begin{matrix} \mathrm{just~one~of} \\ a, b, c \\ \mathrm{is~true} \end{matrix}\) | |
| \(\texttt{(} a, \texttt{(} b \texttt{)}, \texttt{(} c \texttt{))}\) |
\(\begin{matrix} \mathrm{genus}~ a ~\mathrm{of~species}~ b, c \\[6pt] \mathrm{partition}~ a ~\mathrm{into}~ b, c \\[6pt] \mathrm{pie}~ a ~\mathrm{of~slices}~ b, c \end{matrix}\) |
Entitative Interpretation
Table 14 illustrates the entitative interpretation of cactus graphs and cactus expressions by providing English translations for a few of the most basic and commonly occurring forms.
| \(\text{Cactus Graph}\) | \(\text{Cactus Expression}\) | \(\text{Interpretation}\) |
| 24px | \(\mathrm{~}\) | \(\mathrm{false}\) |
| 24px | \(\texttt{(} ~ \texttt{)}\) | \(\mathrm{true}\) |
| \(a\) | \(a\) | |
| \(\texttt{(} a \texttt{)}\) |
\(\begin{matrix} \tilde{a} \\[2pt] a^\prime \\[2pt] \lnot a \\[2pt] \mathrm{not}~ a \end{matrix}\) | |
| \(a~b~c\) |
\(\begin{matrix} a \lor b \lor c \\[6pt] a ~\mathrm{or}~ b ~\mathrm{or}~ c \end{matrix}\) | |
| \(\texttt{((} a \texttt{)(} b \texttt{)(} c \texttt{))}\) |
\(\begin{matrix} a \land b \land c \\[6pt] a ~\mathrm{and}~ b ~\mathrm{and}~ c \end{matrix}\) | |
| \(\texttt{(} a \texttt{)} b\) |
\(\begin{matrix} a \Rightarrow b \\[2pt] a ~\mathrm{implies}~ b \\[2pt] \mathrm{if}~ a ~\mathrm{then}~ b \\[2pt] \mathrm{not}~ a, ~\mathrm{or}~ b \end{matrix}\) | |
| \(\texttt{(} a, b \texttt{)}\) |
\(\begin{matrix} a = b \\[2pt] a \iff b \\[2pt] a ~\mathrm{equals}~ b \\[2pt] a ~\mathrm{if~and~only~if}~ b \end{matrix}\) | |
| \(\texttt{((} a, b \texttt{))}\) |
\(\begin{matrix} a + b \\[2pt] a \neq b \\[2pt] a ~\mathrm{exclusive~or}~ b \\[2pt] a ~\mathrm{not~equal~to}~ b \end{matrix}\) | |
| \(\texttt{(} a, b, c \texttt{)}\) |
\(\begin{matrix} \mathrm{not~just~one~of} \\ a, b, c \\ \mathrm{is~true} \end{matrix}\) | |
| \(\texttt{((} a, b, c \texttt{))}\) |
\(\begin{matrix} \mathrm{just~one~of} \\ a, b, c \\ \mathrm{is~true} \end{matrix}\) | |
| \(\texttt{(((} a \texttt{)}, b, c \texttt{))}\) |
\(\begin{matrix} \mathrm{genus}~ a ~\mathrm{of~species}~ b, c \\[6pt] \mathrm{partition}~ a ~\mathrm{into}~ b, c \\[6pt] \mathrm{pie}~ a ~\mathrm{of~slices}~ b, c \end{matrix}\) |
Logical Graphs
Old Versions
Example 1
o-----------------------------------------------------------o | | | o o o o o o | | \| | | | | | | o o o o o o o o o | | \|/ \|/ |/ | | | @ = @ = @ = @ | | | o-----------------------------------------------------------o | | | (()())(())() = (())(())() = (())() = ( ) | | | o-----------------------------------------------------------o |
Example 2
o-------------------o-------------------o-------------------o | Object | Sign | Interpretant | o-------------------o-------------------o-------------------o | | | | | Falsity | "(()())(())()" | "(())(())()" | | | | | | Falsity | "(())(())()" | "(())()" | | | | | | Falsity | "(())()" | "()" | | | | | o-------------------o-------------------o-------------------o |
Example 3
o-------------------o-------------------o-------------------o | Object | Sign | Interpretant | o-------------------o-------------------o-------------------o | | | | | Falsity | "(()())(())()" | "(()())(())()" | | | | | | Falsity | "(()())(())()" | "(())(())()" | | | | | | Falsity | "(()())(())()" | "(())()" | | | | | | Falsity | "(()())(())()" | "()" | | | | | o-------------------o-------------------o-------------------o | | | | | Falsity | "(())(())()" | "(()())(())()" | | | | | | Falsity | "(())(())()" | "(())(())()" | | | | | | Falsity | "(())(())()" | "(())()" | | | | | | Falsity | "(())(())()" | "()" | | | | | o-------------------o-------------------o-------------------o | | | | | Falsity | "(())()" | "(()())(())()" | | | | | | Falsity | "(())()" | "(())(())()" | | | | | | Falsity | "(())()" | "(())()" | | | | | | Falsity | "(())()" | "()" | | | | | o-------------------o-------------------o-------------------o | | | | | Falsity | "()" | "(()())(())()" | | | | | | Falsity | "()" | "(())(())()" | | | | | | Falsity | "()" | "(())()" | | | | | | Falsity | "()" | "()" | | | | | o-------------------o-------------------o-------------------o |
Example 4
o-------------------o-------------------o-------------------o | a | b | (a , b) | o-------------------o-------------------o-------------------o | | | | | blank | blank | cross | | | | | | blank | cross | blank | | | | | | cross | blank | blank | | | | | | cross | cross | cross | | | | | o-------------------o-------------------o-------------------o |
Example 5
o-------o-------o-------o-----------o | a | b | c | (a, b, c) | o-------o-------o-------o-----------o | | | | | | blank | blank | blank | cross | | | | | | | blank | blank | cross | blank | | | | | | | blank | cross | blank | blank | | | | | | | blank | cross | cross | cross | | | | | | | cross | blank | blank | blank | | | | | | | cross | blank | cross | cross | | | | | | | cross | cross | blank | cross | | | | | | | cross | cross | cross | cross | | | | | | o-------o-------o-------o-----------o |
Example 6
o-------o-------o-------o-----------o | a | b | c | (a, b, c) | o-------o-------o-------o-----------o | | | | | | o | o | o | | | | | | | | | o | o | | | o | | | | | | | o | | | o | o | | | | | | | o | | | | | | | | | | | | | | | o | o | o | | | | | | | | | o | | | | | | | | | | | | | | | o | | | | | | | | | | | | | | | | | | | | | | o-------o-------o-------o-----------o |
New Versions
Example 1
…
Example 2a
| \(\text{Object}\) | \(\text{Sign}\) | \(\text{Interpretant}\) |
| \(\mathrm{Falsity}\) | \({}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime}\) | \({}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime}\) |
| \(\mathrm{Falsity}\) | \({}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime}\) | \({}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime}\) |
| \(\mathrm{Falsity}\) | \({}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime}\) | \({}^{\backprime\backprime} \texttt{()} {}^{\prime\prime}\) |
Example 2b
| \(\text{Object}\) | \(\text{Sign}\) | \(\text{Interpretant}\) |
|
\(\begin{array}{l} \mathrm{Falsity} \\[6pt] \mathrm{Falsity} \\[6pt] \mathrm{Falsity} \end{array}\) |
\(\begin{array}{l} {}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} \end{array}\) |
\(\begin{array}{l} {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{()} {}^{\prime\prime} \end{array}\) |
Example 3
| \(\text{Object}\) | \(\text{Sign}\) | \(\text{Interpretant}\) |
|
\(\begin{array}{l} \mathrm{Falsity} \\[6pt] \mathrm{Falsity} \\[6pt] \mathrm{Falsity} \\[6pt] \mathrm{Falsity} \end{array}\) |
\(\begin{array}{l} {}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime} \end{array}\) |
\(\begin{array}{l} {}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{()} {}^{\prime\prime} \end{array}\) |
|
\(\begin{array}{l} \mathrm{Falsity} \\[6pt] \mathrm{Falsity} \\[6pt] \mathrm{Falsity} \\[6pt] \mathrm{Falsity} \end{array}\) |
\(\begin{array}{l} {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} \end{array}\) |
\(\begin{array}{l} {}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{()} {}^{\prime\prime} \end{array}\) |
|
\(\begin{array}{l} \mathrm{Falsity} \\[6pt] \mathrm{Falsity} \\[6pt] \mathrm{Falsity} \\[6pt] \mathrm{Falsity} \end{array}\) |
\(\begin{array}{l} {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} \end{array}\) |
\(\begin{array}{l} {}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{()} {}^{\prime\prime} \end{array}\) |
|
\(\begin{array}{l} \mathrm{Falsity} \\[6pt] \mathrm{Falsity} \\[6pt] \mathrm{Falsity} \\[6pt] \mathrm{Falsity} \end{array}\) |
\(\begin{array}{l} {}^{\backprime\backprime} \texttt{()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{()} {}^{\prime\prime} \end{array}\) |
\(\begin{array}{l} {}^{\backprime\backprime} \texttt{(()())(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(())(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{(())()} {}^{\prime\prime} \\[6pt] {}^{\backprime\backprime} \texttt{()} {}^{\prime\prime} \end{array}\) |
Example 4
| \(a\) | \(b\) | \(\texttt{(} a \texttt{,} b \texttt{)}\) |
|
\(\begin{matrix} \texttt{Blank} \\[6pt] \texttt{Blank} \\[6pt] \texttt{Cross} \\[6pt] \texttt{Cross} \end{matrix}\) |
\(\begin{matrix} \texttt{Blank} \\[6pt] \texttt{Cross} \\[6pt] \texttt{Blank} \\[6pt] \texttt{Cross} \end{matrix}\) |
\(\begin{matrix} \texttt{Cross} \\[6pt] \texttt{Blank} \\[6pt] \texttt{Blank} \\[6pt] \texttt{Cross} \end{matrix}\) |
Example 5
| \(a\) | \(b\) | \(c\) | \(\texttt{(} a \texttt{,} b \texttt{,} \texttt{c} \texttt{)}\) |
|
\(\begin{matrix} \texttt{Blank} \\[6pt] \texttt{Blank} \\[6pt] \texttt{Blank} \\[6pt] \texttt{Blank} \\[6pt] \texttt{Cross} \\[6pt] \texttt{Cross} \\[6pt] \texttt{Cross} \\[6pt] \texttt{Cross} \end{matrix}\) |
\(\begin{matrix} \texttt{Blank} \\[6pt] \texttt{Blank} \\[6pt] \texttt{Cross} \\[6pt] \texttt{Cross} \\[6pt] \texttt{Blank} \\[6pt] \texttt{Blank} \\[6pt] \texttt{Cross} \\[6pt] \texttt{Cross} \end{matrix}\) |
\(\begin{matrix} \texttt{Blank} \\[6pt] \texttt{Cross} \\[6pt] \texttt{Blank} \\[6pt] \texttt{Cross} \\[6pt] \texttt{Blank} \\[6pt] \texttt{Cross} \\[6pt] \texttt{Blank} \\[6pt] \texttt{Cross} \end{matrix}\) |
\(\begin{matrix} \texttt{Cross} \\[6pt] \texttt{Blank} \\[6pt] \texttt{Blank} \\[6pt] \texttt{Cross} \\[6pt] \texttt{Blank} \\[6pt] \texttt{Cross} \\[6pt] \texttt{Cross} \\[6pt] \texttt{Cross} \end{matrix}\) |
Example 6
| \(a\) | \(b\) | \(c\) | \(\texttt{(} a \texttt{,} b \texttt{,} \texttt{c} \texttt{)}\) |
|
\(\begin{matrix} \texttt{o} \\[6pt] \texttt{o} \\[6pt] \texttt{o} \\[6pt] \texttt{o} \\[6pt] \texttt{|} \\[6pt] \texttt{|} \\[6pt] \texttt{|} \\[6pt] \texttt{|} \end{matrix}\) |
\(\begin{matrix} \texttt{o} \\[6pt] \texttt{o} \\[6pt] \texttt{|} \\[6pt] \texttt{|} \\[6pt] \texttt{o} \\[6pt] \texttt{o} \\[6pt] \texttt{|} \\[6pt] \texttt{|} \end{matrix}\) |
\(\begin{matrix} \texttt{o} \\[6pt] \texttt{|} \\[6pt] \texttt{o} \\[6pt] \texttt{|} \\[6pt] \texttt{o} \\[6pt] \texttt{|} \\[6pt] \texttt{o} \\[6pt] \texttt{|} \end{matrix}\) |
\(\begin{matrix} \texttt{|} \\[6pt] \texttt{o} \\[6pt] \texttt{o} \\[6pt] \texttt{|} \\[6pt] \texttt{o} \\[6pt] \texttt{|} \\[6pt] \texttt{|} \\[6pt] \texttt{|} \end{matrix}\) |