| 〈TOPRED(t; tn)〉 tn = tn0, tn0 ≠ tn1, tn2 = tn, n ≠ 0, ¬ (ap(t) ∧ ap(t .1) ∧ t .1 .1 = K ∧ value(t .1 .2) ∧ value(t .2)), ap(t) ∧ ap(t .1) ∧ ap(t .1 .1) ∧ t .1 .1 .1 = S, v = t .2, v0 = t .1 .2, v4 = t .1 .1 .2, value(v4) ∧ value(v0) ∧ value(v), some(v4 _ v _ (v0 _ v)) = tn1 ⊦ |
〈TOPRED(t; tn2)〉 tn2 = tn0, t .1 .1 .1 = S, tn0 ≠ some(t .1 .1 .2 _ t .2 _ (t .1 .2 _ t .2)), n ≠ 0, t .1 .1 ≠ K, ap(t), ap(t .1), ap(t .1 .1), value(t .1 .1 .2), value(t .1 .2), value(t .2) ⊦
[[CONCRETESIMPRULES : ()]]