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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Something in Common, but Unequal

It is true that if two things---call them A and B---have something in common, it doesn't necessarily mean that A and B have everything in common. This is obvious. However, many people today reason in ...
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Logical fallacy of assuming people are stupid

I don't know if there's a specific name for this particular logical fallacy, but I see this rather often: An organization (government, corporation, etc.) announces some policy. The policy is irksome ...
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What is the fallacy where you completely discredit someone because of a single mistake?

Someone recently told me he felt that an entire scientific field's consensus is invalid because some of its scientists had come to what he believes were incorrect conclusions in the past. For ...
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Is there a term for this logical fallacy: it rains because plants need water?

Is there a term for this kind of logical fallacy? Example: Q: Why does it rain? A: Because plants get thirsty and need water. The beneficiary of the effect is mistaken as the cause of the ...
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If metaphysical grounding of beliefs is not necessary what is to logically compel one to believe anything?

'Grounding' is the notion that 'because of X, Y', X being the reason one can accept Y beyond pragmatic considerations. In this way, X and Y are analogous to cause and effect respectively. If it is ...
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Is this a fallacy: no argument against X, therefore X?

Recently I was talking to a friend of mine, a vegan. Here's what she said: "I was talking to a vegan philosopher once, and he said that he is a vegan because there is no good argument against ...
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Is there a term for this poor idealist argument?

I am engaged in the neverending disagreement with someone who argues, based on theory-ladenness, that there are no facts. Seems like they implicitly make the following moves, without explicitly ...
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Determining Fallacies

I am not very particular with the fallacy committed by each of the 2 statements: Many parents today believe that youth of today are very liberal and curious. Even though some of them are ...
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Logical fallacy classification: comparing the best from one group with the worst in another

I am looking for the name for the logical fallacy that compares the best samples from one group with the worst samples from the second group and concludes that the first group is better than the ...
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Can these examples alleging the Sunk Cost Fallacy really not be fallacies?

Sunk costs are costs that can not be recovered when new planning decision is made. Taking them into account is therefore characterized as a fallacy. But are the examples below really fallacies? [ ...
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Is “you're part of the problem” a logical fallacy?

I've heard many people say if you X, then you're part of the problem. I'm not a logic or philosophy expert so I was wondering if this is a logical fallacy (or something along those lines)? If so, what ...
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Repeatedly asking for definitions of common terms. Is this a fallacy?

Let's say that you provide the definition of a term to someone, and that person asks you to then define terms within that definition. When you do that, then this person asks you to keep defining other ...
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Where can I find logical fallacies in action?

Im looking for a website that gives logical fallacies in action. Not a video that explains logical fallacies, A video, say a debate between 2 people where one of the debators use a logical ...
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What is the name of the following fallacy?

"You are worried about what person Y is saying. Therefore, Y is saying the truth." Context: A person X argues that Y is wrong about his view (let's suppose that X used arguments to support his ...
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Bias of conflating judgement with preference

Is there an established bias or possibly logical fallacy to describe a case when someone allows their personal strong preference for a particular outcome to fully cloud their judgement as to its ...
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Is there a logical fallacy for confusing a word's definition with it's connotation

I had originally asked this at English.SE, but a quick disagreement with some of the users, including a high-reputation user caused me to lose faith in the English.SE community to even Identify the ...
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If one is coerced into believing something that is actually true, have they truly been deceived?

Here, coercion is taken to be the method of persuasion which encompasses all logical fallacies; lying, lying by omission, or embellishment; emotional and otherwise logically unsound arguments; and ...
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Is a mudslinger argument a regress?

Consider this situation: Politician A "slings mud" at Politician B. Politician B accuses Politician A of being a mudslinger Politician A accuses B of being a hypocrite since accusing someone of ...
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Have any philosophers argued that ad hominems are sometimes valid?

As far as I can tell, the position that ad hominem attacks are always invalid seems to be widespread within the philosophical community. I'm not entirely convinced that this is a reasonable position, ...
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At which point is an insult no longer ad hominem?

During an argument with some people, I come to the conclusion that they are either stupid, ignorant or liars. Let's imagine that we have 2 guys discussing what color they should be painting a room. ...
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What fallacy dismisses a conclusion because supporters give invalid arguments for it?

A person dismisses an otherwise valid argument, because some of its proponents support it for the wrong reason. How is this fallacy called? EDIT: Here is an example. A person defends the idea that ...
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Whats the fallacy of diminishing one's faults by pointing that others are worse?

If someone responds with criticism of his country by pointing to some other less tolerant country and saying that 'See that country. That's called intolerance. And here's you criticizing us', what is ...
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Reverse tautologies in rhetorics

Recently I came across the following line of reasoning. The reason is because it is COMMON SENSE, which many do not have. Obviously something goes wrong here as per definition of common sense ...
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How to counter argument from silence?

When I argue with someone whether something is true, I often have to counter an argument like "If that were true, somebody would have proven it.". The premise of the other side is that there are ...
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Is there a logical fallacy in “dropping down” to a different level of abstraction?

Is there a logical fallacy for differing abstractive levels. As in, you start talking on the level of demographics until someone counters with verifiable data on the same level of abstraction, at ...
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Is there a name for the fallacy of “hypocrisy of a group”?

I feel like there has to be just because I see it so often. The statement is usually phrased as a question: "Why does group X believe thing Y but also contradictory thing Z?"—the mistake being that ...
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What makes the “lazy arguments” (you have no chance, so don't bother) valid or invalid?

What I am thinking of is not exactly like the Lazy argument described in Wikipedia. I am thinking of a general argument where a normative conclusion towards inaction is drawn from the knowledge of the ...
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What is the formal name for the desert island fallacy?

In my regular discussions with people, as people run out of logical approaches to an argument, I frequently come across the argument: ...but if you were stuck on a desert island, would you... ...
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Why cannot the Fallacy of Composition be combined with from Hasty Generalisation, and Division with Accident?

Abbreviate the Fallacy of: Hasty Generalization to HG, Composition to CMP, Division to DVN, and Accident to ACT. Source: A Concise Introduction to Logic (12 Ed, 2014) by Patrick Hurley [p 172:] ...
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Since ad hominem arguments affect credibility, how are they still fallacious?

Abbreviate Argumentum ad Hominem to AAH. For consistency, I use 'credibility' to mean both believability and credibility. Source: p 133, A Concise Introduction to Logic (12 Ed, 2014) by Patrick Hurley ...
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Why is there no fallacy, if an Argumentum ad Hominem attacks someone who is not arguing?

Abbreviate Argumentum ad Hominem to AAH and ad Hominem Abusive to AAHA. Source: p 132, A Concise Introduction to Logic (12 Ed, 2014) by Patrick Hurley Keep in mind that the purpose of an ad ...
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'Cars have almost disappeared. So this car has almost.' : Why 'Division' and not 'Accident'?

Source: p 174, A Concise Introduction to Logic (12 Ed, 2014) by Patrick Hurley Abbreviate the Fallacy of Accident to FA and the Fallacy of Division to FD. Just as composition can sometimes be ...
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'Less fuel is consumed by cars than by fire trucks' : Why 'Composition' and not 'Hasty Generalisation'?

Source: p 172, A Concise Introduction to Logic (12 Ed, 2014) by Patrick Hurley Abbreviate the Fallacy of Composition to FC and the Fallacy of Hasty Generalization to FHG. To distinguish ...
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If the Bible contains circular reasoning, does it discredit it?

If the Bible contains circular reasoning, does it discredit it? One of the reasons why I wonder about this is because in most academic/professional fields circular reasoning would discredit the ...
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Is deriving natural rights from nature a logical fallacy?

According to the view of natural rights, rights are derived from nature (a la John Locke), and these rights are possessed by all humans by virtue of being human. To provide an example based on my ...
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How to successfully defend an exception without committing special pleading?

In this question: Does the impossibility of an infinite regress prove God exists? The argument is claiming that the reason X is an exception to Y's rule, is that Y is impossible, as is. The only way ...
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Is the use of inconsistent definitions a logical fallacy?

I am not asking for a defense of or pro/con of the existence of an omnipotent (or multiple omni-x) being, or for the existence of square-circles or any other similar thing. These arguments are well ...
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What is the logical fallacy if persons A says X and person B changes the subject?

Person A provides a fact/opinion X. Person B retaliates by saying that there are more important things to talk about other than the fact/opinion X. Example: The Person A is a prominent politician who ...
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Is there a named fallacy for the argument that a proposition is “believable by comparison”?

Consider an argument where a completely absurd story is presented, and then it is "debunked", and replaced with a more reasonable story. The reasonable story gains credence because it expressly ...
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How is a complex question different to a leading question?

Source: pp 152-153, A Concise Introduction to Logic (12 Ed, 2014) by Patrick J. Hurley [p 152:] The fallacy of complex question is committed when two (or more) questions are asked in the guise ...
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What fallacy is “sports use it so it must be a good system”? [duplicate]

So basically the argument goes, "auto-promotion/relegation is an inherently flawed system because of x reasons." and the response is "well traditional sports have used it for decades thus it's ...
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How does 'distorting an argument' differ from 'changing the subject'?

Source: pp 137-138, A Concise Introduction to Logic (12 Ed, 2014) by Patrick J. Hurley The red herring fallacy can be confused with the straw man fallacy because both have the effect of drawing ...
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How is 'Argumentum Ad Hominem Abusive' fallacious?

Source: p 131, A Concise Introduction to Logic (12 Ed, 2014) by Patrick J. Hurley The argument against the person occurs in three forms: the ad hominem abusive, the ad hominem circumstantial, ...
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Is Appeal to Pity really an Argument from Compassion?

Sorry for the long quote, but please advise how I should abridge it; feel free to emend this post. Source: p 127, A Concise Introduction to Logic (12 Ed, 2014) by Patrick J. Hurley The appeal to ...
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What is the name of the fallacy characterized by “All A are B; therefore all B are A”?

What is the name of this fallacy? I can't seem to find any reference to it on the 'net. It may seem too simple to be a common fallacy, but I don't find that to be the case. For instance, Hume (it ...
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What is the term for twisting an argument so that it can be defeated?

Suppose Person One disagrees with Person Two's argument on a topic. Person One may be using sound logic in their argument, but in an effort to discredit Person Two, Person One first starts by quoting ...
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Is this argument fallacious: “You are immortal; it is impossible not to be, because it is impossible to be conscious of being unconscious.” [closed]

I looked at a site called The Truth Contest which is a compliation of what "The ultimate truth" is. One of the ideas explored is immortality. Here is an excerpt: You are immortal; it is impossible ...
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What is the name for the fallacy the very act of stating which contradicts its truth?

Consider a proposition stating something to be true that by the very act of stating denies truth to the speaker. For example, Alice states that Bob is smart. But, it is common knowledge that Bob is ...
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Is it a fallacy to say that a sane person cannot apply rational thought to the motivations of the insane?

A common argument in today's news is that: Someone commits a heinous crime by shooting a bunch of people. Anyone who commits a heinous crime must be insane. Sane people cannot apply rational thought ...
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Is it fallacious to argue “you can't say X because you lack authority”?

So I understand an Argument from Authority, or ad verecundiam, fallacy is where someone uses a persons/their authority to reason their argument without other sound evidence. But what in a situation ...