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Fallacy Library No True Scotsman
Informal fallacy Commonly Used Fallacy

No True Scotsman

Protects a general claim by redefining the group whenever a counterexample appears.

Definition

Protects a general claim by redefining the group whenever a counterexample appears.

Example
No true fan would ever criticize the team; if you criticize it, you were never a real fan.
Extended explanation

How to think about it:

Protects a general claim by redefining the group whenever a counterexample appears. In practice, the key question is whether the conclusion is supported by evidence and logic, or whether it depends on this reasoning shortcut instead.

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