Exercise logic.propositional.cnf.unicode
Description
Proposition to CNF (unicode support)
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
¬((r ↔ r) ∧ ¬((¬(T ∧ r) ∨ ¬(T ∧ r)) ∧ ¬(T ∧ r)))
⇒ logic.propositional.idempor¬((r ↔ r) ∧ ¬(¬(T ∧ r) ∧ ¬(T ∧ r)))
⇒ logic.propositional.truezeroand¬((r ↔ r) ∧ ¬(¬r ∧ ¬(T ∧ r)))