Ask Your Questions About Logical Fallacies

Welcome! This is the place to ask the community of experts and other fallacyophites (I made up that word) if someone has a committed a fallacy or not. This is a great way to settle a dispute!


Dr. Bo's Criteria for Logical Fallacies:

  • It must be an error in reasoning not a factual error.
  • It must be commonly applied to an argument either in the form of the argument or in the interpretation of the argument.
  • It must be deceptive in that it often fools the average adult.
Therefore, we will define a logical fallacy as a concept within argumentation that commonly leads to an error in reasoning due to the deceptive nature of its presentation. Logical fallacies can comprise fallacious arguments that contain one or more non-factual errors in their form or deceptive arguments that often lead to fallacious reasoning in their evaluation.
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If I die then I have a weak immune system

I have friend who was diagnosed with leukemia.  He has a 25 percent chance of living even with the chemo.  He has refused to take the chemo.  He said that even if chemo had a 100 percent chance of curing him he would still not take it...

asked on Sunday, Sep 20, 2020 01:05:39 AM by Jacob
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Proof by assumption

I have proposition to add a new fallacy to the list Proof by assumption Someone is assuming that he/she is right and based on this assumption he/she claims to be correct. It can be expressed like this: "Because I'm correct, my proof is correct" ...

asked on Thursday, Sep 17, 2020 08:10:52 AM by Mat Rix
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when someone denies facts

Would it be a fallacy when someone denies facts like saying the holocaust never happen? Or maybe cognitive dissonance?

asked on Wednesday, Sep 16, 2020 10:03:16 AM by richard smith
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What logical fallacy would this be?

person 1: God cannot *FORESEE* without *FOREORDAINING*." no scripture says that.   Person 2: The Bible as a *WHOLE* [in toto!] says that!    

asked on Tuesday, Sep 15, 2020 07:46:10 PM by richard smith
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Cognitive bias or fallacy

Person 1 hands in source as proof of his claims. But the source is actually proof against him. Person 2 points out that the source is proofing him wrong. Person 1 claims that Person 2 does not understand the evidence. Is this an appeal to ignora...

asked on Tuesday, Sep 15, 2020 04:24:20 AM by Mr.T
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Sunglasses cause cancer, not the sun argument.

Person 1: Sun causes cancer.  Person2: Sun doesn't cause cancer.  Person 1: Charged particles from the suns UV rays penetrate and damage DNA molecules.  Person 2: Your body is capable of protecting itself from those charged pa...

asked on Saturday, Sep 12, 2020 10:01:22 AM by Jason Mathias
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What fallacies are in this anti vaxxer meme?

Leukemia is the most common type of cancer in children.  Formaldehyde is known to cause Leukemia, and other cancers.  Formaldehyde is an ingredient in vaccines.  Therefore, vaccines are causing Leukemia in children.  Therefor...

asked on Saturday, Sep 12, 2020 08:32:10 AM by Jason Mathias
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Is this a fallacy? Who you are accusing always need a motive.

P1: X presents Y evidence. P2: Y evidence on the associated party doesn't have any motive. C: X is false because we don't know how it may benefit them.   Example: the prosecution finds evidence of the fingerprints of the accused on the gun...

asked on Monday, Sep 07, 2020 09:22:14 PM by Eden Green
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Fallacy pertaining a parallel to the past

Whenever someone raises a concern or complains about something like how vulgar some songs these days are, it is not uncommon for someone else to chip in and point out that similar comments were made about the Beatles and other bands from the 20th ce...

asked on Monday, Sep 07, 2020 03:18:21 PM by Mr. Brinstar
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X turned out to be true

Just wondering if this is considered a fallacy and if so, what to call it. 'A is true.' 'A is ludicrous and unbelievable.' 'Well X seemed ludicrous and unbelievable and it turned out to be true.'

asked on Saturday, Sep 05, 2020 03:34:44 PM by Daniel
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