| ∀ rkv. rkv ∈ rkvs ∨ rkv ∈ rkvs0 → validval(str, rkv .1, rkv .2, st) ⊦ rk0 × val0 ∈ rkvs0 → validval(str, rk0, val0, st) |
rk0 × val0 ∈ rkvs0, ∀ rkv. rkv ∈ rkvs ∨ rkv ∈ rkvs0 → validval(str, rkv .1, rkv .2, st) ⊦ validval(str, rk0, val0, st)
[[CONCRETESIMPRULES : ()]]