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Proof step 14 from proof junkref-addarray-04 (previous step)

vals[i→n(i)] = refval(r0), validref(str, r0, ty, st), newref(r, st), type∃(str, ty), is_reftype(ty), is_array(str, r, addarray(r, ty, vals, st)), i < n→i(# vals), 0 ≤ i, refval(r0) ∈ vals, r0 ∈ st, ¬ st[r0 -- _type] .type ≤ ty ∨ junkref(str, r0, addarray(r, ty, vals, st)) ⊦ vals = [], ty .jtelemtype = void_type, ty .jtelemtype = abstract_type, r = jvmref, r0 = jvmref

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 12:
⊦ validref(str, r, ty, st) ↔ r = jvmref ∨ st[r -- _type] .type ≤ ty ∧ ¬ junkref(str, r, st)
Proof step 13:
⊦ ¬ junkref(str, r, st) ∧ newref(r0, st) → ¬ junkref(str, r, addarray(r0, ty0, vals, st))

Rule argument

[crewrite-arg: validref-def, F, [st, ty, r, str] → [st, ty, r0, str]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, ty, r0, str)]]