| t .1 .1 = K, ap(t), ap(t .1), value(t .1 .2), value(t .2) ⊦ t =>top t .1 .2 |
t = t0 _ t1, t0 .1 = K, ap(t), ap(t0), value(t0 .2), value(t1) ⊦ t =>top t0 .2
[[CONCRETESIMPRULES : ([CSIMPELIM : ⊦ ap(t) → ( t0 = t .1 ∧ t1 = t .2 ↔ t = t0 _ t1)])], [EXTRATERMS : (t, t0, t1)]]