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Proof step 120 from proof unchanged-junkrefs-level (previous step)

is_valid_ref(str, r, st), is_valid_ref(str0, r, st1), st1[r -- _type] .type ≤ ty, is_valid_ref(str, r, st1), junkrefs(str, r ' + refs0, ty, st), unchanged(str0, r, st, st1), level⊆(str, str0), is_valid_ref(str0, r, st), unchangedNorec(r, st, st1), ∀ str0, st, st1, str, ty. unchanged(str0, refs0 .first, st, st1) ∧ junkrefs(str, refs0, ty, st) ∧ level⊆(str, str0) → junkrefs(str, refs0, ty, st1), ∀ r0. (path∃(str0, r, r0, st) ↔ path∃(str0, r, r0, st1)) ∧ (path∃(str0, r, r0, st) → unchangedNorec(r0, st, st1)) ⊦ r = jvmref, junkrefs(str, r ' + refs0, ty, st1)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[x0lemmaarg: spec-name: addfuns instance-name: lemma-name: is-valid-ref-stronger-def antecedent: succedent: is_valid_ref(str, r, st) ↔ is_obj(str, r, st) ∨ is_array(str, r, st) substlist: [st, r, str] → [st1, r, str] add preconditions?: F is rewrite lemma?: T current spec?: F rotate lemma?: F replace all?: T paths: ((0, 0, 3)) dummy: () ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st1, r, str)]]