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History of Philosophy Book Club Message Board › Logical Fallacy #9: ‘No True Scotsman’

Logical Fallacy #9: ‘No True Scotsman’

A former member
Post #: 41
‘No True Scotsman’ Fallacy

Given the upcoming lecture on Kierkegaard I think that this is an interesting fallacy.
The Aristotelian logical structure is not the problem. Pretty rock solid.
However, there are other things that come into play that are.
I find it funny for some reason since I see it used a lot.


Explanation

The no true scotsman fallacy is a way of reinterpreting evidence in order to prevent the refutation of one’s position. Proposed counter-examples to a theory are dismissed as irrelevant solely because they are counter-examples, but purportedly because they are not what the theory is about.

Example

The No True Scotsman fallacy involves discounting evidence that would refute a proposition, concluding that it hasn’t been falsified when in fact it has.

If Angus, a Glaswegian, who puts sugar on his porridge, is proposed as a counter-example to the claim “No Scotsman puts sugar on his porridge”, the ‘No true Scotsman’ fallacy would run as follows:

(1) Angus puts sugar on his porridge.
(2) No (true) Scotsman puts sugar on his porridge.
Therefore:
(3) Angus is not a (true) Scotsman.
Therefore:
(4) Angus is not a counter-example to the claim that no Scotsman puts sugar on his porridge.

This fallacy is a form of circular argument, with an existing belief being assumed to be true in order to dismiss any apparent counter-examples to it. The existing belief thus becomes unfalsifiable.

Real-World Examples

An argument similar to this is often arises when people attempt to define religious groups. In some Christian groups, for example, there is an idea that faith is permanent, that once one becomes a Christian one cannot fall away. Apparent counter-examples to this idea, people who appear to have faith but subsequently lose it, are written off using the ‘No True Scotsman’ fallacy: they didn’t really have faith, they weren’t true Christians. The claim that faith cannot be lost is thus preserved from refutation. Given such an approach, this claim is unfalsifiable, there is no possible refutation of it.

John W
user 9218729
Laurel, MD
Post #: 32
This fallacy presents a chain of possible fallacies. Begin with begging the question of what constitutes a "true Scottsman". Since Man originated in Africa and migrated to other locations, one could argue there is no such thing as a "true Scottsman", only "true Africans". That would make "true Scottsman" an abstraction since one cannot point to an instantiation of the concept, ie. something existing in space and time. In that case this fallacy would become subject to the fallacy of reification. I can see Socrates now, walking through the agora with some arrogant, "son of a noble" asking, "What do you mean by 'true Athenian'?" That approach didn't save him from his hemlock frappe. Reckon I better take my own water if I ever visit Scotland.
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