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Proof step 63 from proof hasSharing-put-byteval-01 (previous step)

is_bytevalue(st[r -- mkfs(class, byte_type, fieldvar) ']) ⊦ ¬ hasSharing(r0, st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)]) ↔ ¬ hasSharing(r0, st), mkfs(class, byte_type, fieldvar) ' = _length, r = jvmref, junkref(str, r0, st)

User applied rule case distinction

And obtained the following new goals

Proof step 24:
¬ hasSharing(r0, st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)]), is_bytevalue(st[r -- mkfs(class, byte_type, fieldvar) ']) ⊦ ¬ hasSharing(r0, st), mkfs(class, byte_type, fieldvar) ' = _length, r = jvmref, junkref(str, r0, st)
Proof step 62:
¬ hasSharing(r0, st), is_bytevalue(st[r -- mkfs(class, byte_type, fieldvar) ']) ⊦ ¬ hasSharing(r0, st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)]), mkfs(class, byte_type, fieldvar) ' = _length, r = jvmref, junkref(str, r0, st)

Rule argument

[CASEDARG : pos: right 1, ()]

Additional information

[[CONCRETESIMPRULES : ()]]