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Proof step 15 from proof junkref-put-norefval-01 (previous step)

okval(val, sk .fs .type), is_fskey(sk), junkref(str, r, st[r1 -- sk, val]) ⊦ sk .fs .type = void_type, sk = _length, is_referencevalue(val), junkref(str, r, st)

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 14:
sk = fs ', okval(val, fs .type), is_fskey(sk), junkref(str, r, st[r1 -- sk, val]) ⊦ fs .type = void_type, sk = _length, is_referencevalue(val), junkref(str, r, st)

Rule argument

[speclemmaarg: ,is_fskey(sk) → (fs = sk .fs ↔ sk = fs ') ,[sk, fs] → [sk, fs] ,T ,storekey , ,elim-03 ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPELIM : ⊦ is_fskey(sk) → (fs = sk .fs ↔ sk = fs ')])], [EXTRATERMS : (sk, fs)]]