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Flaw Practice – Mixed Drinks

Identify the flaw in the argument: “I put vodka in my mixed drink. Therefore, I must not have put tequila in my mixed drink.”


This is an exclusivity flaw.  The author of this argument assumes that it is impossible to include two kinds of alcohol in the mixed drink.  In other words, the author assumes that the two kinds of alcohol are mutually exclusive.  But, as far as we know, it’s totally fine to mix vodka and tequila.  Maybe not a great life choice, but totally okay logic!  The author’s failure to recognize this possibility makes them commit an exclusivity flaw.

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