Show that [tex](\neg B \wedge (A \Rightarrow B)) \Rightarrow \neg A[/tex] is a tautology.(adsbygoogle = window.adsbygoogle || []).push({});

I tried a truth table and found this not to be a tautology. Did I screw up or is this just a poorly worded question?

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# Tautologies [Simple]

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