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Proof step 19 from proof dups-eqsize-entries (previous step)

key = key ∨ key ∈ ks0 → key.dentry? ∧ key.ino = ino, ∀ key0. key0.dentry? ∧ key0.ino = ino → (key0 = key ∨ key0 ∈ ks0 ↔ key0.name ∈ entries), ∀ key0. key0 ∈ ks0 → key0.dentry? ∧ key0.ino = ino, ∀ ks1, ino, entries. # ks1 < #(ks0 ++ key) → (∀ key. key ∈ ks1 → key.dentry? ∧ key.ino = ino) ∧ (∀ key. key.dentry? ∧ key.ino = ino → (key ∈ ks1 ↔ key.name ∈ entries)) → # ks1 = # entries ⊦ # ks0 + 1 = # entries, key ∈ ks0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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