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Proof step 8 from proof validref-addarray-other-01 (previous step)

validref(str, r, ty, st), newref(r0, st) ⊦ r0 = jvmref, r = jvmref ∨ (addarray(r0, ty0, i, st)[r -- _type]) .type ≤ ty ∧ ¬ junkref(str, r, addarray(r0, ty0, i, st))

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ validref(str, r, ty, st) ↔ r = jvmref ∨ st[r -- _type] .type ≤ ty ∧ ¬ junkref(str, r, st)
Proof step 7:
r = jvmref ∨ st[r -- _type] .type ≤ ty ∧ ¬ junkref(str, r, st), newref(r0, st) ⊦ r0 = jvmref, r = jvmref ∨ (addarray(r0, ty0, i, st)[r -- _type]) .type ≤ ty ∧ ¬ junkref(str, r, addarray(r0, ty0, i, st))

Rule argument

[crewrite-arg: validref-def, F, [st, ty, r, str] → [st, ty, r, str]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, ty, r, str)]]