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Proof step 9 from proof validrefs-bytearray (previous step)

validrefs(str, r ' + refs, mkarraytype(byte_type), st) ⊦ refs = [] ∧ okbytearray(r, st), r = jvmref

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ r ≠ jvmref ∧ (¬ is_valid_ref(str, r, st) ∨ ¬ st[r -- _type] .type ≤ ty) → ¬ validrefs(str, r ' + refs, ty, st)
Proof step 8:
¬ (r ≠ jvmref ∧ (¬ is_valid_ref(str, r, st) ∨ ¬ st[r -- _type] .type ≤ mkarraytype(byte_type))), validrefs(str, r ' + refs, mkarraytype(byte_type), st) ⊦ refs = [] ∧ okbytearray(r, st), r = jvmref

Rule argument

[crewrite-arg: validrefs-is-junk , F , [st, ty, refs, r, str] → [st, mkarraytype(byte_type), refs, r, str] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, mkarraytype(byte_type), refs, r, str)]]