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Proof step 21 from proof validrefs-primarray (previous step)

st[r -- _type] .type = mkarraytype(ty0), is_array(str, r, st), is_primtype(ty), ty0 ≤ ty ⊦ r = jvmref, validrefs(str, r ' + refs0, mkarraytype(ty), st) ↔ r ' + refs0 = jvmref ' ∨ okarray(r, ty, st) ∧ refs0 = []

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 5:
⊦ r = jvmref → (validrefs(str, r ' + refs, ty, st) ↔ refs = [])
Proof step 20:
r ≠ jvmref, st[r -- _type] .type = mkarraytype(ty0), is_array(str, r, st), is_primtype(ty), ty0 ≤ ty ⊦ r = jvmref, validrefs(str, r ' + refs0, mkarraytype(ty), st) ↔ r ' + refs0 = jvmref ' ∨ okarray(r, ty, st) ∧ refs0 = []

Rule argument

[crewrite-arg: validrefs-null , F , [st, ty, refs, r, str] → [st, mkarraytype(ty), refs0, r, str] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, mkarraytype(ty), refs0, r, str)]]