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Proof step 5 from proof unchNorec-isobj-01 (previous step)

is_obj(r, st), class+∃(str, st[r -- _type] .type .class), unchangedNorec(r, st, st0) ⊦ is_abstract(st[r -- _type] .type .class), class+∃(str, st0[r -- _type] .type .class) ∧ ¬ is_abstract(st0[r -- _type] .type .class)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 4:
⊦ r ≠ jvmref ∧ st[r -- _type] ≠ st0[r -- _type] → ¬ unchangedNorec(r, st, st0)

Rule argument

[x0lemmaarg: spec-name: instance-name: lemma-name: unchNorec-type-intro antecedent: succedent: r ≠ jvmref ∧ st[r -- _type] ≠ st0[r -- _type] → ¬ unchangedNorec(r, st, st0) substlist: [st0, st, r] → [st0, st, r] add preconditions?: F is rewrite lemma?: T current spec?: T rotate lemma?: F replace all?: T paths: ((0, 0, 2)) dummy: () ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ¬ is_obj(jvmref, st)])], [EXTRATERMS : (st0, st, r)]]