## propositional

Adjective

(*comparative* more propositional, *superlative* most propositional)

- Relating to, or limited to, propositions.

Adjective

(*comparative* more propositional, *superlative* most propositional)

- Relating to, or limited to, propositions.

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- Call it a
**propositional**function; and, if 4)x be a**propositional**function, the undetermined variable x is the argument. - Two
**propositional**functions 4)x and fix are "extensionally identical" if any determination of x in 4)x which converts 4)x into a true proposition also converts 4'x into a true proposition, and conversely for 4' and 4). - Now consider a
**propositional**function Fx in which the variable argument x is itself a**propositional**function. - If Fx is true when, and only when, x is determined to be either 4) or some other
**propositional**function extensionally equivalent to (A, then the proposition F4 is of the form which is ordinarily recognized as being about the class determined by )x taken in extension - that is, the class of entities for which 4)x is a true proposition when x is determined to be any one of them. - A similar theory holds for relations which arise from the consideration of
**propositional**functions with two or more variable arguments.

- proposes
- proposing
- proposita
- proposition
- propositional