back to ideas for this text


Single Idea 9529

[from 'Beginning Logic' by E.J. Lemmon, in 4. Formal Logic / B. Propositional Logic PL / 2. Tools of Propositional Logic / b. Terminology of PL ]

Full Idea

If a well-formed formula of propositional calculus takes the value F for all possible assignments of truth-values to its variables, it is said to be 'inconsistent'.

Gist of Idea

A wff is 'inconsistent' if all assignments to variables result in the value F

Source

E.J. Lemmon (Beginning Logic [1965], 2.3)

Book Reference

Lemmon,E.J.: 'Beginning Logic' [Nelson 1979], p.68