No True Scotsman - Definition and Examples
The “No True Scotsman” fallacy, is a form of informal logical fallacy that arises when one tries to defend a generalization by excluding counterexamples. This defense mechanism is enacted by redefining terms in order to make an argument valid, thus protecting sweeping generalizations from being proven false
The No True Scotsman logical fallacy, also known as the appeal to purity, is a form of informal fallacy that arises when someone tries to defend a universal claim by excluding counterexamples as not being “true” or “pure” enough. This defense mechanism is enacted by redefining terms in order to make an argument valid, rather than acknowledging and addressing the evidence that contradicts the generalization, thus protecting sweeping generalizations from being proven false.