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