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