| C = C0 _ t0, S _ v3 _ v4 = C[K _ v _ v0], context(C), value(v0), value(v), value(t), value(v4), value(v3) ⊦ v3 _ t _ (v4 _ t) = C[v] _ t |
⊦ (C _ t1)[t] = C[t] _ t1
S _ v3 = C0[K _ v _ v0], context(C0), value(v3), value(t0), value(t), value(v), value(v0) ⊦ v3 _ t _ (t0 _ t) = C0[v] _ t0 _ t
[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ context(C _ t) ↔ context(C)], [CSIMPSEQ : ⊦ t _ t0 = t1 _ t2 ↔ t = t1 ∧ t0 = t2])]]