Philosophy Lexicon of Arguments

Variables, philosophy: variables are symbols in statements or logical formulas, in the place of which various, more precise determinations, such as constants or names of objects, can be inserted. In logic, free and bound variables are distinguished. Free variables, which are not bound by a quantifier such as (Ex) or (x), do not form a statement yet but a statement function such as e.g. "Fx" - "Something is F". Numbers or objects are not variable entities. The variability consists in the applicability of more than one possible value. See also free variables, bound variables, constants, individual constants, individual variables, substitution, substitutability, logic, statements, statement function, formulas.

Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments.
Author Item    More concepts for author
Black, Max Variables   Black, Max
Cresswell, M.J. Variables   Cresswell, M.J.
Frege, Gottlob Variables   Frege, Gottlob
Geach, Peter T. Variables   Geach, Peter T.
Lewis, David Variables   Lewis, David
Mates, B. Variables   Mates, B.
Perry, John R. Variables   Perry, John R.
Prior, Arthur Variables   Prior, Arthur
Quine, Willard Van Orman Variables   Quine, Willard Van Orman
Russell, Bertrand Variables   Russell, Bertrand
Schönfinkel, M. Variables   Schönfinkel, M.
Simons, Peter Variables   Simons, Peter
Stalnaker, R. Variables   Stalnaker, R.
Stechow, A. von Variables   Stechow, A. von
Wittgenstein, L. Variables   Wittgenstein, L.

Ed. Martin Schulz, access date 2017-06-26