more from Theodore Sider

### Single Idea 13697

#### [catalogued under 5. Theory of Logic / I. Semantics of Logic / 1. Semantics of Logic]

Full Idea

A valuation function in predicate logic will assign truth values to formulas relative to variable assignments.

Gist of Idea

Valuations in PC assign truth values to formulas relative to variable assignments

Source

Theodore Sider (Logic for Philosophy [2010], 4.2)

Book Reference

Sider,Theodore: 'Logic for Philosophy' [OUP 2010], p.94

A Reaction

Sider observes that this is a 'double' relativisation (due to Tarski), since propositional logic truth was already relative to an interpretation. Now we are relative to variable assignments as well.