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