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Proof step 30 from proof compatobj-isobj (previous step)

compatobj(str, r, st) ⊦ r = jvmref, is_obj(r, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ compatobj(str, r, st) ↔ is_classtype(st[r -- _type] .type) ∧ class+∃(str, st[r -- _type] .type .class) ∧ compatfields(str, r, instfields(st[r -- _type] .type .class), st)
Proof step 29:
is_classtype(st[r -- _type] .type) ∧ class+∃(str, st[r -- _type] .type .class) ∧ compatfields(str, r, instfields(st[r -- _type] .type .class), st) ⊦ r = jvmref, is_obj(r, st)

Rule argument

[crewrite-arg: obj-compat, F, [st, r, str] → [st, r, str]]

Additional information

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