| Line 6: | 
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|   | |  |   | |  | 
|   | <math>\begin{matrix}  |   | <math>\begin{matrix}  | 
| − | (~)       & = & 0 & = & \operatorname{false}  | + | \texttt{(~)}  | 
|   | + | & = & 0  | 
|   | + | & = & \operatorname{false}  | 
|   | \\[6pt]  |   | \\[6pt]  | 
| − | (x)       & = & \tilde{x} & = & x'  | + | \texttt{(} x \texttt{)}  | 
|   | + | & = &  | 
|   | + | \tilde{x}  | 
|   | + | & = & x^\prime  | 
|   | \\[6pt]  |   | \\[6pt]  | 
| − | (x, y)    & = & \tilde{x}y \lor x\tilde{y} & = & x'y \lor xy'  | + | \texttt{(} x, y \texttt{)}  | 
|   | + | & = &  | 
|   | + | \tilde{x}y \lor x\tilde{y}  | 
|   | + | & = &  | 
|   | + | x^\prime y \lor x y^\prime  | 
|   | \\[6pt]  |   | \\[6pt]  | 
| − | (x, y, z) & = & \tilde{x}yz \lor x\tilde{y}z \lor xy\tilde{z} & = & x'yz \lor xy'z \lor xyz'  | + | \texttt{(} x, y, z \texttt{)}  | 
|   | + | & = &  | 
|   | + | \tilde{x}yz \lor x\tilde{y}z \lor xy\tilde{z}  | 
|   | + | & = &  | 
|   | + | x^\prime y z \lor x y^\prime z \lor x y z^\prime  | 
|   | \end{matrix}</math>  |   | \end{matrix}</math>  | 
|   | |}  |   | |}  | 
|   |  |   |  | 
| − | It may also be noted that <math>(x, y)\!</math> is the same function as <math>x + y\!</math> and <math>x \ne y</math>, and that the inclusive disjunctions indicated for <math>(x, y)\!</math> and for <math>(x, y, z)\!</math> may be replaced with exclusive disjunctions without affecting the meaning, because the terms disjoined are already disjoint.  However, the function <math>(x, y, z)\!</math> is not the same thing as the function <math>x + y + z\!</math>.  | + | It may also be noted that <math>\texttt{(} x, y \texttt{)}</math> is the same function as <math>x + y\!</math> and <math>x \ne y</math>, and that the inclusive disjunctions indicated for <math>\texttt{(} x, y \texttt{)}</math> and for <math>\texttt{(} x, y, z \texttt{)}</math> may be replaced with exclusive disjunctions without affecting the meaning, because the terms disjoined are already disjoint.  However, the function <math>\texttt{(} x, y, z \texttt{)}</math> is not the same thing as the function <math>x + y + z\!</math>.  | 
|   |  |   |  | 
|   | The minimal negation operator ('''mno''') has a legion of aliases:  ''logical boundary operator'', ''[[limen|limen operator]]'', ''threshold operator'', or ''least action operator'', to name but a few.  The rationale for these names is visible in the [[venn diagram]]s of the corresponding operations on [[set]]s.  |   | The minimal negation operator ('''mno''') has a legion of aliases:  ''logical boundary operator'', ''[[limen|limen operator]]'', ''threshold operator'', or ''least action operator'', to name but a few.  The rationale for these names is visible in the [[venn diagram]]s of the corresponding operations on [[set]]s.  |