Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.idempand

¬¬¬(q → p) ↔ (¬¬(r ↔ s) ∨ F ∨ ¬s)

⇒ logic.propositional.defimpl

¬¬¬(¬q ∨ p) ↔ (¬¬(r ↔ s) ∨ F ∨ ¬s)