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Proof step 4 from proof validsubset-okbytearray (previous step)

okbytearray(r, st), validref(str, r, mkarraytype(byte_type), st0), ∀ r. ¬ r ∈ st ∧ r ∈ st0 → ¬ junkref(str, r, st0) ⊦ okbytearray(r, st0)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ validref(str, r, mkarraytype(byte_type), st) ↔ okbytearray(r, st) ∨ r = jvmref

Rule argument

[crewrite-arg: okbytearray-validref, F, [st, r, str] → [st0, r, str]]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ¬ okbytearray(jvmref, st)])], [EXTRATERMS : (st0, r, str)]]