Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

¬((r ∧ r) ∨ (¬r ∧ ¬r)) ∨ ¬(r ↔ r) ∨ ¬(T ∧ r)

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Path 1

path	[0, 1, 3, 2, 1]
steps	5
major rules	1
active labels	cnf eliminateimplequiv