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