Single Idea 14464

[catalogued under 5. Theory of Logic / C. Ontology of Logic / 1. Ontology of Logic]

Full Idea

Logical propositions are such as can be known a priori, without study of the actual world.

Gist of Idea

Logic can be known a priori, without study of the actual world

Source

Bertrand Russell (Introduction to Mathematical Philosophy [1919], XVIII)

Book Reference

Russell,Bertrand: 'Introduction to Mathematical Philosophy' [George Allen and Unwin 1975], p.204


A Reaction

This remark constrasts strikingly with Idea 12444, which connects logic to the actual world. Is it therefore a priori synthetic?

Related Idea

Idea 12444 Logic is concerned with the real world just as truly as zoology [Russell]