ArchéSave
The Arche project looks at the foundations of mathematics, especially at Frege's Theorem and its ramifications. Based at the University of St Andrews. http://www.st-and.ac.uk/academic/phil...
Hilbert II - Mathematical Foundation ProjectSave
The Goal of Hilbert II, which is in the tradition of Hilbert's program, is the creation of a system that enables a working mathematician to put theorems and proofs (in the formal language of predicate calculus) into it. http://www.qedeq.org/
Mizar ProjectSave
An attempt to reconstruct mathematical vernacular into a formal language which can be read by humans and also verified by software. http://www.mizar.org/