Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished
¬(¬((q ∧ q) ∨ (q ∧ q)) ∨ p) ↔ ((r ↔ s) ∨ ¬s)
logic.propositional.idempand
¬(¬(q ∨ (q ∧ q)) ∨ p) ↔ ((r ↔ s) ∨ ¬s)
logic.propositional.absorpor
¬(¬q ∨ p) ↔ ((r ↔ s) ∨ ¬s)