Exercise logic.propositional.dnf.unicode
Description
Proposition to DNF (unicode support)
Derivation
Final term is not finished
¬(q → p) ↔ (¬(s ∨ s) ∨ (r ↔ ¬¬s))
⇒ logic.propositional.idempor¬(q → p) ↔ (¬s ∨ (r ↔ ¬¬s))
⇒ logic.propositional.notnot¬(q → p) ↔ (¬s ∨ (r ↔ s))
⇒ logic.propositional.defequiv¬(q → p) ↔ (¬s ∨ (r ∧ s) ∨ (¬r ∧ ¬s))