Propositional Variable

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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Propositional Variable

 

a variable whose range of values consists of the two truth values “true” and “false” (but not of true and false propositions, as the term, at first glance, might appear to indicate). Symbols used as propositional variables are required, for example, in describing the propositional calculus and other systems of mathematical logic.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.