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Proof step 10 from proof prepost-recover-main-same (previous step)

avol0 = avol1, err = err0, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ [debug#("persistence-io: ubi recover failed")] (err = ESUCCESS → avol0 = avol), err = ESUCCESS

Heuristic simplifier applied rule simplifier

And closed the goal!

Rule argument

Additional information

Used simplifier rules: ⊦ ⌊err⌋ → err ≠ ESUCCESS; (s)