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Proof step 17 from proof is_valid_ref-putbytearray (previous step)

st[r0 -- _type] .type ≤ ty, class+∃(str, st[r0 -- _type] .type .class), is_obj(r0, st) ⊦ ty = mkclasstype(`java.lang.Object' .class), is_arraytype(ty), is_arraytype(st[r0 -- _type] .type), is_abstract(st[r0 -- _type] .type .class), is_valid_ref(r0, putByteArray(bytes, r, i, st))

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 15:
⊦ is_valid_ref(r, st) ↔ is_obj(r, st) ∨ is_array(r, st)
Proof step 16:
⊦ is_obj(r, putByteArray(bytes, r1, i, st)) ↔ is_obj(r, st)

Rule argument

[x0lemmaarg: spec-name: instance-name: lemma-name: is-valid-ref antecedent: succedent: is_valid_ref(r, st) ↔ is_obj(r, st) ∨ is_array(r, st) substlist: [st, r] → [putByteArray(bytes, r, i, st), r0] add preconditions?: F is rewrite lemma?: T current spec?: T rotate lemma?: F replace all?: T paths: ((1, 0, 4)) dummy: () ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (putByteArray(bytes, r, i, st), r0)]]