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Exercise logic.propositional.cnf.unicode
Description
Proposition to CNF (unicode support)
Derivation
Final term is not finished
¬(r ↔ ¬¬r) ∨ ¬¬¬(T ∧ r)
⇒
logic.propositional.notnot
¬(r ↔ r) ∨ ¬¬¬(T ∧ r)