# Applied Logic

No beer drinker is a vegan. John is a beer drinker. Therefore, John is not a vegan.
Is this valid or invalid. If valid, give a proof. If invalid, give a counterexample.

1. 👍 0
2. 👎 0
3. 👁 66
1. it is valid.
what do you think constitutes a proof?

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2. 👎 0

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