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Proof step 7 from proof validstatfields-rec (previous step)

validstatfield(str, sk, st), sk0 ∈ sks, ∀ sk. sk ∈ sks → validstatfield(str, sk, st) ⊦ validstatfield(str, sk0, st)

Heuristic quantifier closing applied rule all left

And closed the goal!

Rule argument

[EXRARG : pos: left 3, [QUANTTERMLIST : (sk0)]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (sk0)]]