Theorem T000134
∧ ¬ ⇒ ¬
The converse ( ¬ ⇒ ∧ ¬ ) cannot be proven from other theorems or disproven from a counterexample.
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The converse ( ¬ ⇒ ∧ ¬ ) cannot be proven from other theorems or disproven from a counterexample.
You can learn how to contribute a theorem or counterexample here.