more from Alfred Tarski

Single Idea 18811

[catalogued under 3. Truth / F. Semantic Truth / 1. Tarski's Truth / b. Satisfaction and truth]

Full Idea

Tarski invoked the notion of a sentential function, where components are replaced by appropriate variables. A function is then satisfied by assigning objects to variables. An assignment satisfies if the function is true of the things assigned.

Gist of Idea

Tarski uses sentential functions; truly assigning the objects to variables is what satisfies them


report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Ian Rumfitt - The Boundary Stones of Thought 3.2

Book Reference

Rumfitt,Ian: 'The Boundary Stones of Thought' [OUP 2015], p.72

A Reaction

[very compressed] This use of sentential functions, rather than sentences, looks like the key to Tarski's definition of truth.