A sentential variable, also called a propositional variable, that can be substituted for in arbitrary sentential formulas (Carnap 1958, p. 24).
Sentential Variable
See also
Sentential FormulaExplore with Wolfram|Alpha
References
Carnap, R. Introduction to Symbolic Logic and Its Applications. New York: Dover, 1958.Referenced on Wolfram|Alpha
Sentential VariableCite this as:
Weisstein, Eric W. "Sentential Variable." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/SententialVariable.html