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Proof step 56 from proof hasSharing-put-byteval (previous step)

i < st[r1 -- _length] .intval, okarray(r1, byte_type, st), 0 ≤ i, 0 < st[r1 -- _length] .intval, r1 ∈ st ⊦ ¬ hasSharing(r, st[r1 -- i ', byteval(by)]) ↔ ¬ hasSharing(r, st), r1 = jvmref, junkref(str, r, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ hasSharing(r, st) ↔ (∃ sks1, sks2. fits(r, sks1, st) ∧ fits(r, sks2, st) ∧ sks1 ≠ sks2 ∧ sks1 ≠ [] ∧ sks2 ≠ [] ∧ st[r -- sks1] .refval ≠ jvmref ∧ st[r -- sks1] = st[r -- sks2])
Proof step 55:
i < st[r1 -- _length] .intval, okarray(r1, byte_type, st), 0 ≤ i, 0 < st[r1 -- _length] .intval, r1 ∈ st ⊦ ¬ (∃ sks1, sks2. fits(r, sks1, st[r1 -- i ', byteval(by)]) ∧ fits(r, sks2, st[r1 -- i ', byteval(by)]) ∧ sks1 ≠ sks2 ∧ sks1 ≠ [] ∧ sks2 ≠ [] ∧ (st[r1 -- i ', byteval(by)][r -- sks1]) .refval ≠ jvmref ∧ (st[r1 -- i ', byteval(by)][r -- sks1]) = (st[r1 -- i ', byteval(by)][r -- sks2])) ↔ ¬ hasSharing(r, st), r1 = jvmref, junkref(str, r, st)

Rule argument

[crewrite-arg: hasSharing-def , F , [st, r] → [st[r1 -- i ', byteval(by)], r] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st[r1 -- i ', byteval(by)], r)]]