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Questions tagged [fallacies]

concerns logical fallacies, which are errors in the logic or reasoning of an argument that result in a misconception or presumption

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Which fallacy is “if not P, not Q. P. Therefore Q”?

“If you don’t go to the doctor tomorrow, you won’t get better. You will go to the doctor tomorrow. So, you will get better.” What kind of fallacy does this argument fall under? I have a suspicion it’...
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What is the fallacy regarding knowing someone who is X therefore you know about topics regarding X

What is the name of the fallacy that goes along the lines of: My brother is a doctor so I can claim arguments about medicine.
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What is the fallacy when someone refuses to be specific

A Muslim apologist was debating two Atheists on DW channel in Arabic, the host asked him whether he agrees with "executing atheist apostates". The Muslim apologist knows that apostates are to be ...
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What's a name for the fallacy of concluding something must be based on truth because it is successful?

I have noticed a type of fallacious reasoning that conflates truth and success. For example, a company might assume their predictive models are correct because these models make the company more money....
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Is this discussion fallacious?

I heard people having this kind of discussion. I don't know why it sounded a bit off, but I want to know if it was just me or if there is a fallacy here somewhere. Person 1 = X Person 2 = Y X: ...
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What fallacy is assuming something is the case because of past events

I'm sure this is a simple question. What I am referring to is disbelieving someone on Day 20 because they have lied every day previous to Day 20. Another example is the boy who cried wolf. The 50th ...
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Affirming the Consequent Reasoning You See in Everyday Life

What are common examples of affirming the consequent reasoning you see in everyday life?
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Fallacy identification

I have been seeing a lot of “if you_____then you____ .” fallacy in communication lately. Examples would be “If you don’t support “Black Life’s Matter then you hate black people” “If you didn’t vote ...
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What fallacy, paradox or cognitive bias is this? [closed]

You do an advertisement, "Lowest price in town", but a vast majority of people now suspect that your prices are not the lowest. They now start hunting around for lower prices than yours and they ...
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What fallacy is this?

I am curious about what fallacy the following kind of reasoning represents. Let's say we are questioning if something is true. I would argue that in order for us to question if something is true we ...
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What kind of fallacy is this (resembles false cause)?

An African leader dispatches troops to the border of a neighboring country. A critic who happens to be a white U.S. citizen says, "That man's a militaristic bully!" One of the African leaders' ...
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What is the name of this logical fallacy

What is the name of the fallacy: "If you buy XXX, which is expensive, then you would also buy YYY, because if you spent so much on XXX then you would spend as much on YYY." The fallacy implies that ...
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Is this an example of Denying the Antecedent?

Is this an example of Denying the Antecedent? Harry is not an inexperienced driver, and thus must not be irrational, seeing as all inexperienced drivers are irrational. At first, I thought it was ...
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Is this an example of Undistributed Middle?

Is this an example of Undistributed Middle? John is not a teenager, since all teenagers are impulsive, and John is not impulsive.
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Is this an example of False Cause?

Is this an example of False Cause? When the small boy said his prayers at night, he did not wet the bed. However, he forgot to pray one evening and he wet the bed. This must be the reason why this ...
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Is a selfish action that helps others worthy of praise?

TL:DR Is a selfish man who only does stuff for his own benefit, worthy of praise if his actions just so happen to help others? (And am I wrong in assuming someone always attempts to gain something?). ...
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What's the fallacy of relevance here?

To know absolutely that there is no God one must have infinite knowledge. But to have infinite knowledge one would have to be God. it is impossible to be God and an atheist at the same time. Atheists ...
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Common name of “overgeneralization” logical fallacy

There is a fallacy (I believe) that I see committed often that goes something like this (super contrived example): X does not care if Joe stole Bob's car. X doesn't even know Joe or Bob. Y states ...
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Is it scientific or a logical error to claim something is true because I can't think of another explanation

The situation Let's say, someone is wrong on the internet. She says The forums on that newspaper article is closed. Apparently the newspaper want to suppress public debate. I reply: That's ...
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Does this fallacy have a name?

Consider the following argument for a claim X: Present proof of statement X', which is similar to but different from X (and doesn‘t imply it). Conclude that X holds. Example: Polls show that 80% ...
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What's the fallacy when someone asks a question and then answers it themselves?

Example: "Why didn't you compete in the annual sports event? It was because you knew that you'd lose anyway!" Or, "How did he run that fast? he must've taken steroids" It falls under unwarranted ...
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What's the name of the “God creates Evil” fallacy?

I see this fallacy everywhere, from anti-Christians to Socialists/Communists. It goes like this: "if God exists, then why did He make all this Evil?" Another example: "the baker, by baking bread and ...
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Is “I cannot imagine a mechanism for X to happen, so X can never happen” a named logical fallacy?

I have encountered this reasoning quite frequently: Somebody posits the hypothesis that an event X can happpen. A recent example I encountered was "vinegar and salt in the boiling water make eggs ...
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Does an informal logical fallacy require deception?

Bo Bennett's criteria distinguishing a logical fallacy from a pseudo-logical fallacy has three parts. The third part is: It must be deceptive in that it often fools the average adult. ...
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Is wanting certainty a fallacy (or a pseudo fallacy)?

Dcleve wrote the following as an aside in a question about indirect realism: Our WANTING certainty – is irrelevant. Worse, it is an explicit fallacy! I liked that question and up-voted it, but I ...
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Voting for the Lesser of Evils = What cognitive bias or fallacy? [closed]

One could ague that voting for the lesser of evils is nothing more than simple manipulation. The ruling class makes sure there are just two viable political parties, then it recruits a really creepy ...
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What were the main sophistical methods according to Plato?

In her paper Modern Moral Philosophy, G. E. M. Anscombe used the phrase "sophistical methods" and "his procedures are certainly sophistical" (page 3 of the linked file). I assume this meant something ...
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What fallacy is this? “People were wrong before, so they're likely wrong now too”

What's the name for this logical fallacy: "Research has shown that X." "That doesn't matter. In the past, people were convinced that Y but it was then shown that they were wrong. In a few ...
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If I saw UFOs, and I was of sound mind and body, does that give the right to say that it is true? [closed]

Around a year ago I saw some spectacular things in the skies above me, on three separate occasions. I believe I was of sound mind and what I saw really did exist. Given that what I saw was so out-...
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Is accusing an opponent of committing any fallacy a red herring?

Suppose one person in an argument claims that the other has committed a fallacy. Whether or not the accusation is true, the accused is now distracted from the original argument and has to defend ...
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Seeking clarification of how an argument from Aristotle is found fallacious using Frege's quantification tools

G. E. M. Anscombe writes in An Introduction to Wittgenstein's Tractatus (page 15-16): Again, the following fallacious piece of reasoning is found in Aristotle: 'All chains of means to ends must ...
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What logical fallacy is “If you don't like it, move!”?

When criticizing government, society or whatever, people often retort, "If you don't like America, why don't you move somewhere else?" What kind of fallacy would this qualify as? At first glance, it ...
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What argument styles have only recently been labelled fallacies?

While reading Douglas Walton's "Historical Origins of Argumentum ad Consequentiam", I realized there is at least one argument style that appears reasonable but which has been labelled as a logical ...
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Is there a logical fallacy for rejecting “A not B, because A precludes B?”

I'm not sure if I'm asking the right question here, but I'm wondering if there is an actual fallacy to describe this situation.
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Is there a concept that relates to the idea of a “snuck premise”?

In this video around 6:00 into it, Charisma on Command channel, "7 Reasons Ben Shapiro Is So Dominant in Debates" https://www.youtube.com/watch?v=JY5t6iUzajk the concept of a "snuck premise" is ...
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What fallacy uses two different standards for comparisons?

I don't know how many Native Americans were killed by the U.S. government and/or citizens, but let's just make up a fictitious number for this question: two million. Next, let's assume the Soviet ...
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Is this an Affirming the Consequent fallacy?

If a Company doctor is competent, then he or she has completed the Company's "Fitness-for-Duty Examiner" certification training. [If P then Q] Company doctors are all Certified Fitness-for-Duty ...
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Is there a name for the fallacy: 1/100 chance == 100 times guaranteed success?

Let's say someone is playing a computer game in which the chance for some item to drop is 1 out of 100 each time he kills a monster. The player concludes that if he kills 100 monsters then it is ...
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Are there fallacies in the gratitude to something horrible and attributing to their current success or self?

In Game of Thrones, at least twice, a character has had gratitude for horrible events in their life because they say it has lead them to meet their soul mate. In one episode Grey Worm, a soldier, ...
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Why do we think objects and beings are real? [closed]

How can we tell if we are real and not a simulation that we perceive to be real. Given we know not what the universe is except what we perceive it to be. What if galaxies are just but other ...
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Logical fallacy — discrediting someone because they do something you agree with [closed]

A friend posted this tweet: The point of the person's tweet seems to be, "Since Trump is thinking the same way that Kaepernick is thinking, and Kaepernick is right, then Trump is wrong." Honestly, ...
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Is anecdotal evidence enough to counter a broad generalization?

Is anecdotal evidence enough to counter a broad generalization? I just had an argument with someone who asked for a scientific study to back up what I was arguing for in order to counter their broad ...
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You disagree with me, therefore you are X. What is the name of this fallacy (manipulative trick)?

Across my life I have encountered this numerous times. One recent example: If you don't think those are a crime, you are not adult enough or logical enough to have a conversation with me. While ...
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Is arguing that one's opponent has “no evidence” an example of some identified logical fallacy?

I sometimes hear someone claim that the person they are arguing with has "no evidence" for whatever they are arguing for. Although I usually dismiss such claims thinking that what "no evidence" means ...
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Is circular reasoning always a fallacy?

Suppose the following dialogue: ... "I accept only one notion of land property. Namely, 'I am doing my stuff here, therefore I am here". "But this means," he responded, "you can break ...
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Can an argument be formally valid with sound premises and still be informally fallacious?

Consider the following two assumptions: Validity Assumption: Assume an argument is valid. It follows all the formal logical rules of inference. The inference contains no formal logical fallacy. ...
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Is there a name for the fallacy where you pretend some universal fact is particular evidence for your claim?

I feel like this fallacy should have a name. Here is the toy example. Alice and Bob have one loaf of bread between them. For some reason only one of them is allowed eat the bread; they cannot share ...
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Irrational statement: If you believe in one ______, you'll probably believe in another

I'm not sure if this qualifies as a fallacy, but it is a form of deception that I've seen before. Imagine a person who doesn't believe in heavenly bodies, other than stars and planets. So he says, ...
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What fallacy falsely assumes knowledge of an unethical act?

(Please note that this question is a hypothetical example with a premise that can't be challenged. When I say this fictitious principal sabotaged a test, and a reporter knowingly lied about it, that's ...
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Is This An Example of the Straw Man Fallacy or Something Else Entirely? If So, What Fallacy Is It?

I am wondering if you can assist me with identifying a certain kind a fallacy? I believe it might be the Straw Man fallacy, but I'm unsure. In this instance, however, an opponent is not attributing ...