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