Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished
¬(T ∧ ((q → p) ∨ (q → p))) ↔ ((r ↔ s) ∨ ¬s)
logic.propositional.defimpl
¬(T ∧ (¬q ∨ p ∨ (q → p))) ↔ ((r ↔ s) ∨ ¬s)
logic.propositional.defimpl
¬(T ∧ (¬q ∨ p ∨ ¬q ∨ p)) ↔ ((r ↔ s) ∨ ¬s)
logic.propositional.idempor
¬(T ∧ (¬q ∨ p)) ↔ ((r ↔ s) ∨ ¬s)