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Proof step 12 from proof validref-put-01 (previous step)

⊦ r = r0, r0 ≠ jvmref ∧ r0 -- _type ∈ st ∧ is_typevalue(st[r0 -- _type]) ∧ is_classtype(st[r0 -- _type] .type) ∧ is_obj(r0, st[r0 -- _type] .type .class, st) ∨ is_array(r0, st[r -- sk, val]) ↔ is_obj(r0, st) ∨ is_array(r0, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 5:
⊦ is_obj(r, st) ↔ r ≠ jvmref ∧ r -- _type ∈ st ∧ is_typevalue(st[r -- _type]) ∧ is_classtype(st[r -- _type] .type) ∧ is_obj(r, st[r -- _type] .type .class, st)
Proof step 11:
⊦ r = r0, r0 ≠ jvmref ∧ r0 -- _type ∈ st ∧ is_typevalue(st[r0 -- _type]) ∧ is_classtype(st[r0 -- _type] .type) ∧ is_obj(r0, st[r0 -- _type] .type .class, st) ∨ is_array(r0, st[r -- sk, val]) ↔ r0 ≠ jvmref ∧ r0 -- _type ∈ st ∧ is_typevalue(st[r0 -- _type]) ∧ is_classtype(st[r0 -- _type] .type) ∧ is_obj(r0, st[r0 -- _type] .type .class, st) ∨ is_array(r0, st)

Rule argument

[crewrite-arg: is-any-object, F, [st, r] → [st, r0]]

Additional information

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