Single Idea 9516

[catalogued under 4. Formal Logic / B. Propositional Logic PL / 2. Tools of Propositional Logic / b. Terminology of PL]

Full Idea

A 'well-formed formula' of the propositional calculus is a sequence of symbols which follows the rules for variables, , →, ∧, ∨, and ↔.

Gist of Idea

A 'well-formed formula' follows the rules for variables, , →, ∧, ∨, and ↔

Source

E.J. Lemmon (Beginning Logic [1965], 2.1)

Book Reference

Lemmon,E.J.: 'Beginning Logic' [Nelson 1979], p.44