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Proof step 53 from proof junkrefs-put-norefval-01 (conclusion)

⊦ ¬ is_referencevalue(val) ∧ ¬ junkrefs(str, refs, ty, st) ∧ is_fskey(sk) ∧ okval(val, sk .fs .type) ∧ sk .fs .type ≠ void_type ∧ sk ≠ _length → ¬ junkrefs(str, refs, ty, st[r1 -- sk, val])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 52:
okval(val, sk .fs .type), is_fskey(sk), junkrefs(str, refs, ty, st[r1 -- sk, val]) ⊦ sk .fs .type = void_type, sk = _length, is_referencevalue(val), junkrefs(str, refs, ty, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]