Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.truezeroand

(T ∧ ¬(q → p)) ↔ ((T ∧ (r ↔ s)) ∨ ¬s)