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Proof step 8 from proof dom-istore-crash-refm-refsize0 (previous step)

remove-refsize0(istore0) = istore0 ⊦ n ∈ crash(istore, istore0) ∧ crash(istore, istore0)[n].ref-size ≠ 0 ↔ n ∈ istore0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 9:
crash(istore, istore0)[n].ref-size = 0, remove-refsize0(istore0) = istore0, n ∈ istore0 ⊦

Rule argument

Additional information

Used simplifier rules: crash-index-in: ⊦ n ∈ crash(istore, istore0) ↔ n ∈ istore0;