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Proof step 5 from proof validstatfields-rec (previous step)

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

User applied rule all left

And obtained the following new goals

Proof step 4:
sk = sk ∨ sk ∈ sks → validstatfield(str, sk, st), ∀ sk0. sk0 ∈ sks → validstatfield(str, sk0, st) ⊦ validstatfield(str, sk, st) ∧ (sk0 ∈ sks → validstatfield(str, sk0, st))

Rule argument

[EXRARG : pos: left 1, [extquanttermlist: (sk)abort:F, discard:F, computed:T]]

Additional information

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