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