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