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.defequiv¬¬¬(q → p) ↔ ((r ∧ s) ∨ (¬r ∧ ¬s) ∨ ¬s)
⇒ logic.propositional.absorpor¬¬¬(q → p) ↔ ((r ∧ s) ∨ ¬s)