Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

(¬¬(q ∧ q) ∧ ¬p) ↔ ((r ↔ s) ∨ ¬s)

⇒ logic.propositional.notnot

(q ∧ q ∧ ¬p) ↔ ((r ↔ s) ∨ ¬s)

⇒ logic.propositional.idempand

(q ∧ ¬p) ↔ ((r ↔ s) ∨ ¬s)