Exercise logic.propositional.dnf.unicode
Description
Proposition to DNF (unicode support)
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
¬(¬¬q → p) ↔ (((T ∧ (r ↔ s)) ∨ ¬s) ∧ T)
⇒ logic.propositional.truezeroand¬(¬¬q → p) ↔ (((r ↔ s) ∨ ¬s) ∧ T)
⇒ logic.propositional.defequiv¬(¬¬q → p) ↔ (((r ∧ s) ∨ (¬r ∧ ¬s) ∨ ¬s) ∧ T)