| 〈RED1(t1; tn)〉 tn = none, 〈TOPRED(t1 _ t2; tn)〉 tn = none, ∀ t0. #(t0) < #(t1 _ t2) → (true → 〈RED1(t0; tn)〉 (tn = none ⊃ irred(t0); t0 => tn .t)), t1 _ t2 => t', irred(t1), ¬ value(t1), ¬ t1 _ t2 =>top t' ⊦ |
[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ t1 _ t2 => t' ∧ irred(t1) ∧ ¬ value(t1) → t1 _ t2 =>top t'])]]