Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.absorpor

¬(q → p) ↔ ((r ∧ (F ∨ s)) ∨ ¬s)