Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

¬(T ∧ r ∧ (r ↔ (T ∧ r)))
logic.propositional.truezeroand
¬(r ∧ (r ↔ (T ∧ r)))
logic.propositional.truezeroand
¬(r ∧ (r ↔ r))
logic.propositional.defequiv
¬(r ∧ ((r ∧ r) ∨ (¬r ∧ ¬r)))
logic.propositional.idempand
¬(r ∧ (r ∨ (¬r ∧ ¬r)))
logic.propositional.absorpand
¬r