Logic Fallacy Flashcards

1
Q

Affirming the consequent

A

When an implication is read the wrong way.

If the wind is strong, the clothes dry quickly.
The clothes have dried quickly, therefore the wind must be strong.

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2
Q

Denying the antecedent

A

Misinterpreting an implication as an equivalence

The wind is strong, the clothes dry quickly.
However, the wind is gentle, so the clothes will take a long time to dry.

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3
Q

Begging the question / circular argument

A

A conclusion derived from itself.

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4
Q

Undistributed middle

A

Where the middle term does not (necessarily) refer to the same thing in both cases.

Some Cretans are liars. Some Cretans are Christians.
Therefore some Christians are liars.

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5
Q

Argument ad hominem

A

Denying the claim by attacking the person instead of the evidence.
Eg. He is a liar, therefore this isn’t true.

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