Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.idempor

(T ∧ ¬(q → p)) ↔ (T ∧ ((r ↔ s) ∨ ¬s))