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.idempand

(¬¬¬¬q ∧ ¬p) ↔ ((r ↔ s) ∨ ¬s)

⇒ logic.propositional.notnot

(¬¬q ∧ ¬p) ↔ ((r ↔ s) ∨ ¬s)