The Logic of Provability

George S. Boolos

The Logic of Provability, written by one of the most distinguished contemporary philosophers of mathematics, is a fully rewritten and updated successor to the author’s earlier The Unprovability of Consistency (1979).

Its subject is the relation between provability and modal logic, a branch of logic invented by Aristotle but much disparaged by philosophers and virtually ignored by mathematicians. Here it receives its first scientific application since its invention.