Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.truezeroand

¬¬(¬(q → p) ↔ ((r ↔ s) ∨ (¬s ∧ ¬s)))

⇒ logic.propositional.defimpl

¬¬(¬(¬q ∨ p) ↔ ((r ↔ s) ∨ (¬s ∧ ¬s)))