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Proof step 30 from proof eq-io-readdir (previous step)

dirs1[m] = mkdir(m3, md0, m4, m5, entries), m ∈ dirs1, ⌊err1⌋ ⊦ ∃ err0. ⌊err0⌋ ∧ ⟨err := err0⟩ (strings1 = strings1 ∧ err = err1), ∃ strings. ⟨strings0 := strings; fail#(; ; err)⟩ (strings0 = strings1 ∧ err = err1)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 31:
dirs1[m] = mkdir(m3, md0, m4, m5, entries), m ∈ dirs1, ⌊err1⌋ ⊦ ∃ strings. ⟨strings0 := strings; fail#(; ; err)⟩ (strings0 = strings1 ∧ err = err1), ∃ err0. ⌊err0⌋ ∧ ⟨err := err0⟩ (err = err1)

Proof step 30 from proof eq-io-readdir (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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