No True Scotsman
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No True Scotsman
The No True Scotsman fallacy is a type of logical fallacy in which a person attempts to protect a generalization from counterexamples by changing the definition in an ad hoc manner to exclude the counterexample. This fallacy is often used in discussions about group identities or beliefs. It is a way of avoiding evidence that contradicts one's beliefs by redefining the terms of the argument. The No True Scotsman fallacy is often used in discussions about religion, politics, and other belief systems. For example, if someone claims that all members of a particular religion are peaceful, and someone else points out that there are members of that religion who have committed violent acts, the first person might respond by saying that those individuals are not true members of the religion. This response is a way of avoiding the evidence that contradicts the initial claim. The No True Scotsman fallacy is a way of protecting one's beliefs from criticism. It is a form of confirmation bias that allows people to maintain their beliefs in the face of evidence to the contrary. This fallacy can be difficult to detect because it often involves changing the definition of a term in a subtle way that is not immediately obvious. In conclusion, the No True Scotsman fallacy is a type of logical fallacy that involves changing the definition of a term in order to protect a belief from counterexamples. It is a form of confirmation bias that allows people to maintain their beliefs in the face of evidence to the contrary. This fallacy is often used in discussions about religion, politics, and other belief systems. It is important to be aware of this fallacy in order to avoid making it in one's own arguments and to recognize it in the arguments of others.
logical fallacy, confirmation bias, belief systems, ad hoc, counterexamples
CITATION : "Charles Martinez. 'No True Scotsman.' Design+Encyclopedia. https://design-encyclopedia.com/define/no-true-scotsman?E=357202 (Accessed on October 13, 2026)"
No True Scotsman
No True Scotsman is a cognitive bias that affects how people think and make decisions. It is a logical fallacy where someone uses an overly specific definition of a group that excludes some members of the group. For example, if someone says that all Scotsmen love haggis, then someone else might say that they know a Scotsman who doesn't like haggis, and the first person might reply that the person isn't a true Scotsman. This way of thinking prevents people from considering new information that might go against their beliefs.
No True Scotsman, Cognitive Bias, Logical Fallacy, Thinking Processes.
No True Scotsman
No True Scotsman is a cognitive bias and logical fallacy wherein a person tries to defend an assertion by excluding any counterexamples by claiming that any counterexamples are not true examples of the assertion. This is often used to maintain a position regardless of evidence to the contrary. For example, if someone were to state No Scotsman puts sugar on his porridge, and someone else were to produce a counterexample of a Scotsman who does put sugar on his porridge, the person making the initial claim might then state, Ah, well, no true Scotsman puts sugar on his porridge. This is an example of the No True Scotsman fallacy as it excludes any counterexamples from consideration in order to maintain the initial assertion.
Cognitive Bias, Logical Fallacy, Scotsman, Porridge, Sugar.
No True Scotsman on Design+Encyclopedia
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