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Proof step 23 from proof fits-put-02-stronger (previous step)

st[r -- sk] = refval(r0), r1 ∈ st, okarray(r1, byte_type, st), fits(r0, sks0, st[r1 -- i ', byteval(by)]), is_obj(str, r, st) ∨ is_array(str, r, st), junkref(str, r0, st), is_classtype(st[r -- _type] .type) → sk ∈ instfields(st[r -- _type] .type .class), is_arraytype(st[r -- _type] .type) → is_indexkey(sk) ∧ 0 ≤ sk .index ∧ sk .index < st[r -- _length] .intval, r ≠ r1 ∨ sk ≠ i ' ⊦ r1 = jvmref, r = jvmref, junkref(str, r, st), fits(r0, sks0, st)

User applied rule case distinction

And obtained the following new goals

Proof step 13:
is_obj(str, r, st), st[r -- sk] = refval(r0), r1 ∈ st, okarray(r1, byte_type, st), fits(r0, sks0, st[r1 -- i ', byteval(by)]), junkref(str, r0, st), is_classtype(st[r -- _type] .type) → sk ∈ instfields(st[r -- _type] .type .class), is_arraytype(st[r -- _type] .type) → is_indexkey(sk) ∧ 0 ≤ sk .index ∧ sk .index < st[r -- _length] .intval, r ≠ r1 ∨ sk ≠ i ' ⊦ r1 = jvmref, r = jvmref, junkref(str, r, st), fits(r0, sks0, st)
Proof step 22:
is_array(str, r, st), st[r -- sk] = refval(r0), r1 ∈ st, okarray(r1, byte_type, st), fits(r0, sks0, st[r1 -- i ', byteval(by)]), junkref(str, r0, st), is_classtype(st[r -- _type] .type) → sk ∈ instfields(st[r -- _type] .type .class), is_arraytype(st[r -- _type] .type) → is_indexkey(sk) ∧ 0 ≤ sk .index ∧ sk .index < st[r -- _length] .intval, r ≠ r1 ∨ sk ≠ i ' ⊦ r1 = jvmref, r = jvmref, junkref(str, r, st), fits(r0, sks0, st)

Rule argument

[CASEDARG : pos: left 5, ()]

Additional information

[[CONCRETESIMPRULES : ()]]