Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.truezeroand

¬¬(T ∧ (¬(¬q ∨ p) ↔ ((r ↔ s) ∨ ¬s)))