Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.defimpl

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