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Exercise logic.propositional.cnf.unicode
Description
Proposition to CNF (unicode support)
(((r ↔ r) ∧ (r ↔ r)) → (¬T ∨ ¬(r ∧ T) ∨ ¬(r ∧ T ∧ r) ∨ ¬T)) ∨ ¬r
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