Metamath

Metamath is a tiny computer language that can express theorems in abstract mathematics, accompanied by proofs that can be verified by a computer program. The first part of the book provides easy-to-read informal discussion of abstract mathematics and computers for general audiences. The later parts provide in-depth coverage of the foundations of mathematics, the Metamath language, and the Metamath program. More information can be found at the <a href="http://us2.metamath.org:8888/index.html">Metamath</a> web site.