Fallacy name of jumping from definition of x to "x doesn't exist"?
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Original Question
I'm in a debate class, and we're doing a logical fallacy unit. Basically, we need to make an argument with logical fallacies (not factual inconsistencies) and point them out in our partner's. In my case, our resolution is Resolved: Men are Men. I'm con; men are not men. One of my arguments is as follows;
1.(Illogical quote that states men are women).
2. Men are women.
3. Because men are defined as women, men don't exist.
I want to know what the fallacy between 2 and 3 is. Why is jumping from a definition to 'men don't exist' fallacious?
1.(Illogical quote that states men are women).
2. Men are women.
3. Because men are defined as women, men don't exist.
I want to know what the fallacy between 2 and 3 is. Why is jumping from a definition to 'men don't exist' fallacious?
Answers
1This seems like a logical error, not a problem with reasoning per se. If A = B then A does not exist only if B does not exist . If B exists, then A must exist. Saying A does not exist can be seen as a non-sequitur by saying that it simply does not follow.
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