| validstatfield(str, sk, st) ∧ (∀ sk. sk ∈ sks → validstatfield(str, sk, st)) ⊦ ∀ sk0. sk0 = sk ∨ sk0 ∈ sks → validstatfield(str, sk0, st) |
validstatfield(str, sk, st), sk0 ∈ sks, ∀ sk. sk ∈ sks → validstatfield(str, sk, st) ⊦ validstatfield(str, sk0, st)
[[CONCRETESIMPRULES : ()]]