Also, some general-purpose tactics of an abstract algebraic character. This file requires logicdefs2.mk2. Depends on the logic file new.quantifiers.mk2, but independent of the more ad hoc development of arithmetic in naturals.mk2. Intended to illustrate proof by induction. Abstraction and reduction algorithms in place.
Strong reduction is planned.
This is a file I'm using in pure math research. It might be interesting to students as showing a different approach to boolean algebra. The reason I'm working on it is that Quine never equipped it with axioms or rules of inference. Pure math research, probably no CS interest. The files should be given the indicated names, since some invoke others.