| validvals(str, rkvs1, st), validvals(str, rkvs0, st) ⊦ ∀ rkv. rkv ∈ rkvs0 → validval(str, rkv .1, rkv .2, st[rkvs1]) |
validvals(str, rkvs0, st), validvals(str, rkvs1, st), rkv ∈ rkvs0 ⊦ validval(str, rkv .1, rkv .2, st[rkvs1])
[[CONCRETESIMPRULES : ()]]