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Proof step 67 from proof hasSharing-put-byteval-01 (previous step)

sk .fs .type = byte_type, is_bytevalue(st[r -- sk]), is_fskey(sk) ⊦ ¬ hasSharing(r0, st[r -- sk, byteval(by)]) ↔ ¬ hasSharing(r0, st), sk = _type, sk = _length, r = jvmref, junkref(str, r0, st)

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 66:
sk = fs ', fs .type = byte_type, is_bytevalue(st[r -- sk]), is_fskey(sk) ⊦ ¬ hasSharing(r0, st[r -- sk, byteval(by)]) ↔ ¬ hasSharing(r0, st), sk = _type, sk = _length, r = jvmref, junkref(str, r0, 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)]]