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Proof step 5 from proof validref-object (previous step)

⊦ r = jvmref, validref(str, r, mkclasstype(`java.lang.Object' .class), st), junkref(str, r, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ validref(str, r, ty, st) ↔ r = jvmref ∨ st[r -- _type] .type ≤ ty ∧ ¬ junkref(str, r, st)
Proof step 4:
⊦ r = jvmref, r = jvmref ∨ st[r -- _type] .type ≤ mkclasstype(`java.lang.Object' .class) ∧ ¬ junkref(str, r, st), junkref(str, r, st)

Rule argument

[x0lemmaarg: spec-name: instance-name: lemma-name: validref-def antecedent: succedent: validref(str, r, ty, st) ↔ r = jvmref ∨ st[r -- _type] .type ≤ ty ∧ ¬ junkref(str, r, st) substlist: [st, ty, r, str] → [st, mkclasstype(`java.lang.Object' .class), r, str] add preconditions?: F is rewrite lemma?: T current spec?: T rotate lemma?: F replace all?: T paths: ((1, 0, 1)) dummy: () ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, mkclasstype(`java.lang.Object' .class), r, str)]]