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Proof step 19 from proof validstatfields-put-norefval-field-better (conclusion)

⊦ validstatfields(str, st) ∧ ¬ is_referencevalue(val) ∧ is_fskey(sk) ∧ okval(val, sk .fs .type) ∧ sk ≠ _length → validstatfields(str, st[r -- sk, val])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 18:
okval(val, sk .fs .type), is_fskey(sk), validstatfields(str, st) ⊦ sk = _length, is_referencevalue(val), validstatfields(str, st[r -- sk, val])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]