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Proof step 38 from proof initialization (previous step)

psynced ↔ isdir, fs = fs1, ofh = ofh1, root = tree, ⌊err1⌋ ⊦ ∃ err. ⌊err⌋ ∧ ⟨err0 := err⟩ (tree = root ∧ fs1 = fs ∧ ofh1 = ofh ∧ (isdir ↔ psynced) ∧ err1 = err0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 39:
⌊err1⌋ ⊦ ∃ err. ⌊err⌋ ∧ ⟨err0 := err⟩ (err1 = err0)

Proof step 38 from proof initialization (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information