%ID: $Id$ %Author: Jia Meng, NICTA %const-typed combinator reduction for S clause( forall([A, B, C, P, Q, R], or( equal(hAPP(hAPP(hAPP(c_COMBS(A,B,C),P),Q),R),hAPP(hAPP(P,R),hAPP(Q,R))))), a2 ).