| ∀ rkv. rkv ∈ rkvs0 → validval(str, rkv .1, rkv .2, st), validvals(str, rkvs1, st), rk × val ∈ rkvs0 ⊦ validval(str, rk, val, st[rkvs1]), validval(str, rk, val, st) |
[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (rk × val) .1 = rk], [CSIMPSEQ : ⊦ (rk × val) .2 = val])], [EXTRATERMS : (rk × val)]]