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Proof step 26 from proof addobj-union-rew (previous step)

¬ r ≠ r0, newref(r, st), newref(r, st0) ⊦ r = jvmref, (r0 -- sk ∈ addobj(r, class, fis, st ∪ st0) ↔ r0 -- sk ∈ st ∨ r0 -- sk ∈ addobj(r, class, fis, st0)) ∧ (addobj(r, class, fis, st ∪ st0)[r0 -- sk]) = (st ∪ addobj(r, class, fis, st0))[r0 -- sk]

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ newref(r, st) → r ≠ jvmref], [CSIMPSEQ : ⊦ rk ∈ st ∪ st0 ↔ rk ∈ st ∨ rk ∈ st0])]]