Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

¬¬(¬(T ∧ (q → p)) ↔ ((r ↔ ¬¬s) ∨ ¬s))

⇒ logic.propositional.truezeroand

¬¬(¬(q → p) ↔ ((r ↔ ¬¬s) ∨ ¬s))

⇒ logic.propositional.defimpl

¬¬(¬(¬q ∨ p) ↔ ((r ↔ ¬¬s) ∨ ¬s))