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Proof step 4 from proof inv-crash (previous step)

inv(istore), istore0 ⊑ istore ⊦ ∀ n. n ∈ crash(istore, istore0) → inv(crash(istore, istore0)[n])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 5:
inv(istore), n ∈ istore0, n ∈ istore, istore0 ⊑ istore ⊦ inv(crash(istore, istore0)[n])

Rule argument

Additional information

Used simplifier rules: crash-index-in: ⊦ n ∈ crash(istore, istore0) ↔ n ∈ istore0;%prefix-fwd-in: ⊦ istore ⊑ istore0 ∧ n ∈ istore → n ∈ istore0; (forward) from specification ablock-store-inv[index-store]