出典:Wiktionary
出典:『Wiktionary』 (2016/04/19 03:42 UTC 版)
propositional variable (複数形 propositional variables)
出典:Wikipedia
出典:『Wikipedia』 (2010/11/28 22:05 UTC 版)
In mathematical logic, a propositional variable (also called a sentential variable or sentential letter) is a variable which can either be true or false. Propositional variables are the basic building-blocks of propositional formulas, used in propositional logic and higher logics.