Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

¬¬¬(q → (F ∨ p)) ↔ (¬¬(r ↔ s) ∨ ¬s)

⇒ logic.propositional.notnot

¬(q → (F ∨ p)) ↔ (¬¬(r ↔ s) ∨ ¬s)

⇒ logic.propositional.falsezeroor

¬(q → p) ↔ (¬¬(r ↔ s) ∨ ¬s)

⇒ logic.propositional.defimpl

¬(¬q ∨ p) ↔ (¬¬(r ↔ s) ∨ ¬s)