Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

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