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Proof step 6 from proof validref-put-array-norefval-01 (conclusion)

⊦ validref(str, r, ty, st) ∧ is_indexkey(sk) ∧ ¬ is_referencevalue(val) ∧ okval(val, st[r0 -- _type] .type .type) → validref(str, r, ty, st[r0 -- sk, val])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 5:
okval(val, st[r0 -- _type] .type .type), is_indexkey(sk), validref(str, r, ty, st) ⊦ is_referencevalue(val), validref(str, r, ty, st[r0 -- sk, val])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]