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Proof step 7 from proof validrefs-bytearray (previous step)

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

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ is_array(str, r, st) ∧ st[r -- _type] .type ≤ ty → ( validrefs(str, r ' + refs, ty, st) ↔ refs = [] ∨ (∃ i. 0 ≤ i ∧ i < st[r -- _length] .intval ∧ is_referencevalue(st[r -- i ']) ∧ refs .first = st[r -- i '] .refval ∧ validrefs(str, refs, st[r -- _type] .type .type, st)))
Proof step 6:
is_array(str, r, st) ∧ st[r -- _type] .type ≤ mkarraytype(byte_type), refs = [] ∨ (∃ i. 0 ≤ i ∧ i < st[r -- _length] .intval ∧ is_referencevalue(st[r -- i ']) ∧ refs .first = st[r -- i '] .refval ∧ validrefs(str, refs, st[r -- _type] .type .type, st)), is_array(r, st), okbytearray(r, st) ⊦ r = jvmref, refs = []

Rule argument

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

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ okbytearray(r, st) → is_array(str, r, st)], [CSIMPSEQ : ⊦ okbytearray(r, st) → st[r -- _type] = typeval(mkarraytype(byte_type))], [CSIMPSEQ : ⊦ typeval(ty) .type = ty], [CSIMPSEQ : ⊦ mkarraytype(ty) ≤ mkarraytype(ty0) ↔ ty ≤ ty0], [CSIMPSEQ : ⊦ byte_type ≤ ty ↔ ty = byte_type])], [EXTRATERMS : (st, mkarraytype(byte_type), refs, r, str)]]