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Proof step 3 from proof validmode (previous step)

st[_mode] = noval, _mode ∈ st ⊦ validmode(str, noval, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ validmode(str, val, st) ↔ val = noval ∨ is_break_mode(val) ∨ val = return(noval, void_type) ∨ is_return_mode(val) ∧ validref(str, val .refval, val .type, st) ∨ is_throw_mode(val) ∧ val .refval ≠ jvmref ∧ validref(str, val .refval, val .type, st) ∧ val .type ≤ mkclasstype(`java.lang.Throwable' .class)

Rule argument

[crewrite-arg: validmodeval-def, F, [st, val, str] → [st, noval, str]]

Additional information

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