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