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| & \quad & | | & \quad & |
| \operatorname{d}p ~\operatorname{or}~ \operatorname{d}q | | \operatorname{d}p ~\operatorname{or}~ \operatorname{d}q |
− | \end{matrix}</math> | + | \end{matrix}\!</math> |
| |} | | |} |
| | | |
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| <math>\begin{array}{rcc} | | <math>\begin{array}{rcc} |
| \operatorname{E}X & = & X \times \operatorname{d}X | | \operatorname{E}X & = & X \times \operatorname{d}X |
− | \end{array}</math> | + | \end{array}\!</math> |
| |} | | |} |
| | | |
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| & = & | | & = & |
| \{ \texttt{(} \operatorname{d}q \texttt{)},~ \operatorname{d}q \} | | \{ \texttt{(} \operatorname{d}q \texttt{)},~ \operatorname{d}q \} |
− | \end{array}</math> | + | \end{array}\!</math> |
| |} | | |} |
| | | |
− | The interpretations of these new symbols can be diverse, but the easiest | + | The interpretations of these new symbols can be diverse, but the easiest option for now is just to say that <math>\operatorname{d}p\!</math> means "change <math>p\!</math>" and <math>\operatorname{d}q</math> means "change <math>q\!</math>". |
− | option for now is just to say that <math>\operatorname{d}p</math> means "change <math>p\!</math>" and <math>\operatorname{d}q</math> means "change <math>q\!</math>". | |
| | | |
| Drawing a venn diagram for the differential extension <math>\operatorname{E}X = X \times \operatorname{d}X</math> requires four logical dimensions, <math>P, Q, \operatorname{d}P, \operatorname{d}Q,</math> but it is possible to project a suggestion of what the differential features <math>\operatorname{d}p</math> and <math>\operatorname{d}q</math> are about on the 2-dimensional base space <math>X = P \times Q</math> by drawing arrows that cross the boundaries of the basic circles in the venn diagram for <math>X\!,</math> reading an arrow as <math>\operatorname{d}p</math> if it crosses the boundary between <math>p\!</math> and <math>\texttt{(} p \texttt{)}</math> in either direction and reading an arrow as <math>\operatorname{d}q</math> if it crosses the boundary between <math>q\!</math> and <math>\texttt{(} q \texttt{)}</math> in either direction. | | Drawing a venn diagram for the differential extension <math>\operatorname{E}X = X \times \operatorname{d}X</math> requires four logical dimensions, <math>P, Q, \operatorname{d}P, \operatorname{d}Q,</math> but it is possible to project a suggestion of what the differential features <math>\operatorname{d}p</math> and <math>\operatorname{d}q</math> are about on the 2-dimensional base space <math>X = P \times Q</math> by drawing arrows that cross the boundaries of the basic circles in the venn diagram for <math>X\!,</math> reading an arrow as <math>\operatorname{d}p</math> if it crosses the boundary between <math>p\!</math> and <math>\texttt{(} p \texttt{)}</math> in either direction and reading an arrow as <math>\operatorname{d}q</math> if it crosses the boundary between <math>q\!</math> and <math>\texttt{(} q \texttt{)}</math> in either direction. |
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| (p)~q~ | | (p)~q~ |
| \\[4pt] | | \\[4pt] |
− | (p)~~~ | + | (p)[[User:Jon Awbrey|Jon Awbrey]] ([[User talk:Jon Awbrey|talk]]) |
| \\[4pt] | | \\[4pt] |
| ~p~(q) | | ~p~(q) |
| \\[4pt] | | \\[4pt] |
− | ~~~(q)
| + | [[User:Jon Awbrey|Jon Awbrey]] ([[User talk:Jon Awbrey|talk]])(q) |
| \\[4pt] | | \\[4pt] |
| (p,~q) | | (p,~q) |
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| ((p,~q)) | | ((p,~q)) |
| \\[4pt] | | \\[4pt] |
− | ~~~~~q~~
| + | 17:54, 5 December 2014 (UTC)q~~ |
| \\[4pt] | | \\[4pt] |
| ~(p~(q)) | | ~(p~(q)) |
| \\[4pt] | | \\[4pt] |
− | ~~p~~~~~ | + | ~~p17:54, 5 December 2014 (UTC) |
| \\[4pt] | | \\[4pt] |
| ((p)~q)~ | | ((p)~q)~ |
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| |} | | |} |
| | | |
− | For example, given the set <math>X = \{ a, b, c \},\!</math> suppose that we have the 2-adic relative term <math>\mathit{m} = {}^{\backprime\backprime}\, \text{marker for}\, \underline{~~~~}\, {}^{\prime\prime}</math> and | + | For example, given the set <math>X = \{ a, b, c \},\!</math> suppose that we have the 2-adic relative term <math>\mathit{m} = {}^{\backprime\backprime}\, \text{marker for}\, \underline{[[User:Jon Awbrey|Jon Awbrey]] ([[User talk:Jon Awbrey|talk]]) 17:54, 5 December 2014 (UTC)}\, {}^{\prime\prime}</math> and |
| the associated 2-adic relation <math>M \subseteq X \times X,</math> the general pattern of whose common structure is represented by the following matrix: | | the associated 2-adic relation <math>M \subseteq X \times X,</math> the general pattern of whose common structure is represented by the following matrix: |
| | | |
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| |} | | |} |
| | | |
− | Recognizing that <math>a\!:\!a + b\!:\!b + c\!:\!c</math> is the identity transformation otherwise known as <math>\mathit{1},\!</math> the 2-adic relative term <math>m = {}^{\backprime\backprime}\, \text{marker for}\, \underline{~~~~}\, {}^{\prime\prime}</math> can be parsed as an element <math>\mathit{1} + a\!:\!b + b\!:\!c + c\!:\!a</math> of the so-called ''group ring'', all of which makes this element just a special sort of linear transformation. | + | Recognizing that <math>a\!:\!a + b\!:\!b + c\!:\!c</math> is the identity transformation otherwise known as <math>\mathit{1},\!</math> the 2-adic relative term <math>m = {}^{\backprime\backprime}\, \text{marker for}\, \underline{[[User:Jon Awbrey|Jon Awbrey]] ([[User talk:Jon Awbrey|talk]]) 17:54, 5 December 2014 (UTC)}\, {}^{\prime\prime}</math> can be parsed as an element <math>\mathit{1} + a\!:\!b + b\!:\!c + c\!:\!a</math> of the so-called ''group ring'', all of which makes this element just a special sort of linear transformation. |
| | | |
| Up to this point, we are still reading the elementary relatives of the form <math>i\!:\!j</math> in the way that Peirce read them in logical contexts: <math>i\!</math> is the relate, <math>j\!</math> is the correlate, and in our current example <math>i\!:\!j,</math> or more exactly, <math>m_{ij} = 1,\!</math> is taken to say that <math>i\!</math> is a marker for <math>j.\!</math> This is the mode of reading that we call "multiplying on the left". | | Up to this point, we are still reading the elementary relatives of the form <math>i\!:\!j</math> in the way that Peirce read them in logical contexts: <math>i\!</math> is the relate, <math>j\!</math> is the correlate, and in our current example <math>i\!:\!j,</math> or more exactly, <math>m_{ij} = 1,\!</math> is taken to say that <math>i\!</math> is a marker for <math>j.\!</math> This is the mode of reading that we call "multiplying on the left". |