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Proof step 21 from proof junkref-put-refval-01 (previous step)

is_arraytype(st[r0 -- _type] .type), mkarraytype(ty) ≤ st[r0 -- _type] .type, junkrefs(str, r ' + refs0, st[r -- _type] .type, st[r0 -- i ', refval(jvmref)]), is_reftype(ty) ⊦ r0 = jvmref, junkref(str, r, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 16:
⊦ ¬ junkrefs(str, refs, ty, st) ∧ r ≠ jvmref ∧ is_reftype(st[r -- _type] .type .type) → ¬ junkrefs(str, refs, ty, st[r -- i ', refval(jvmref)])
Proof step 20:
¬ (¬ junkrefs(str, r ' + refs0, st[r -- _type] .type, st) ∧ r0 ≠ jvmref ∧ is_reftype(st[r0 -- _type] .type .type)), is_arraytype(st[r0 -- _type] .type), mkarraytype(ty) ≤ st[r0 -- _type] .type, junkrefs(str, r ' + refs0, st[r -- _type] .type, st[r0 -- i ', refval(jvmref)]), is_reftype(ty) ⊦ r0 = jvmref, junkref(str, r, st)

Rule argument

[crewrite-arg: junkrefs-put-null-02 , F , [i, r, st, ty, refs, str] → [i, r0, st, st[r -- _type] .type, r ' + refs0, str] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (i, r0, st, st[r -- _type] .type, r ' + refs0, str)]]