complete unification algorithms, Software, source code, etc. for problems pertaining to general algebraic systems, finite termination property, free commutative groups, Boolean algebra, distributive lattices, unique termination property, extension of the Knuth-Bendix algorithm for finding complete sets of reductions, theory of a finite number of associative and commutative functions, commutative rings with unit, well-founded partial order, Theorem proving (deduction, resolution, etc.)