Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

¬(T ∧ (¬q ∨ p)) ↔ (((¬¬r ∨ r) ↔ s) ∨ ¬s)

⇒ logic.propositional.truezeroand

¬(¬q ∨ p) ↔ (((¬¬r ∨ r) ↔ s) ∨ ¬s)