Theorem T000445
∧ ∧ ∧ ¬ ⇒
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.