| ks(n) .1 .1 = S _ t1, value(ks(n) .2), value(ks(n) .1 .2), value(t1), ap(ks(n) .1), ap(ks(n)) ⊦ |
ks(n) .1 = t0 _ t2, t0 = S _ t1, value(ks(n) .2), value(t2), value(t1), ap(ks(n) .1), ap(ks(n)) ⊦
[[CONCRETESIMPRULES : ([CSIMPELIM : ⊦ ap(t) → ( t0 = t .1 ∧ t1 = t .2 ↔ t = t0 _ t1)])], [EXTRATERMS : (ks(n) .1, t, t0)]]