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Proof step 6 from proof validref-put-shortval (previous step)

is_shortvalue(st[r -- mkfs(class, short_type, fieldvar) ']), validref(str, r0, ty, st) ⊦ r = jvmref, r0 = jvmref ∨ (st[r -- mkfs(class, short_type, fieldvar) ', shortval(sho)][r0 -- _type]) .type ≤ ty ∧ ¬ junkref(str, r0, st[r -- mkfs(class, short_type, fieldvar) ', shortval(sho)])

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 5:
is_shortvalue(st[r -- mkfs(class, short_type, fieldvar) ']), r0 = jvmref ∨ st[r0 -- _type] .type ≤ ty ∧ ¬ junkref(str, r0, st) ⊦ r = jvmref, r0 = jvmref ∨ (st[r -- mkfs(class, short_type, fieldvar) ', shortval(sho)][r0 -- _type]) .type ≤ ty ∧ ¬ junkref(str, r0, st[r -- mkfs(class, short_type, fieldvar) ', shortval(sho)])

Rule argument

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

Additional information

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