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

level⊆(str, str0), validstatfield(str, sk, st), validstatfields(str, sks0, st), ∀ str, str0, st. level⊆(str, str0) ∧ validstatfields(str, sks0, st) → validstatfields(str0, sks0, st) ⊦ validstatfield(str0, sk, st) ∧ validstatfields(str0, sks0, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 4:
⊦ validstatfield(str, sk, st) ∧ level⊆(str, str0) → validstatfield(str0, sk, st)
Proof step 6:
validstatfield(str, sk, st) ∧ level⊆(str, str0), level⊆(str, str0), validstatfield(str, sk, st), validstatfields(str, sks0, st), ∀ str, str0, st. level⊆(str, str0) ∧ validstatfields(str, sks0, st) → validstatfields(str0, sks0, st) ⊦ true ∧ validstatfields(str0, sks0, st)

Rule argument

[crewrite-arg: validstatfield-levelsubset , F , [str, sk, st, str0] → [str, sk, st, str0] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (str, sk, st, str0)]]