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