more from Gottlob Frege

### Single Idea 7622

#### [catalogued under 5. Theory of Logic / A. Overview of Logic / 2. History of Logic]

Full Idea

By 1879 Frege had discovered an algorithm, a mechanical proof procedure, that embraces what is today standard 'second order logic'.

Gist of Idea

In 1879 Frege developed second order logic

Source

report of Gottlob Frege (Begriffsschrift [1879]) by Hilary Putnam - Reason, Truth and History Ch.5

Book Reference

Putnam,Hilary: 'Reason, Truth and History' [CUP 1998], p.124

A Reaction

Note that Frege did more than introduce quantifiers, and the logic of predicates.