Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.absorpor

¬¬¬(q → p) ↔ ((r ∧ T ∧ s) ∨ ¬s)