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| − | I am going to put off explaining Table—2, that presents a sample of what I call ''interpretive categories'' for higher order propositions, until after we get beyond the 1-dimensional case, since these lower dimensional cases tend to be a bit ''condensed'' or ''degenerate'' in their structures, and a lot of what is going on here will almost automatically become clearer as soon as we get even two logical variables into the mix.  | + | I am going to put off explaining Table 2, that presents a sample of what I call ''interpretive categories'' for higher order propositions, until after we get beyond the 1-dimensional case, since these lower dimensional cases tend to be a bit ''condensed'' or ''degenerate'' in their structures, and a lot of what is going on here will almost automatically become clearer as soon as we get even two logical variables into the mix.  | 
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|   | ====Higher Order Propositions and Logical Operators (''n'' = 2)====  |   | ====Higher Order Propositions and Logical Operators (''n'' = 2)====  | 
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| − | By way of reviewing notation and preparing to extend it to higher order universes of discourse, let us first consider the universe of discourse ''X''° = [''X''] = [''x''<sub>1</sub>, ''x''<sub>2</sub>] = [''x'', ''y''], based on two logical features or boolean variables ''x'' and ''y''.  | + | By way of reviewing notation and preparing to extend it to higher order universes of discourse, let us first consider the universe of discourse <math>X^\circ = [X] = [x_1, x_2] = [x, y],</math> based on two logical features or boolean variables <math>x\!</math> and <math>y.\!</math>  | 
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| − | | The points of ''X''° are collected in the space:  | + | | The points of <math>X^\circ</math> are collected in the space:  | 
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