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