Logical Fallacies

LogFall

A practical logical-fallacies reference with clear explanations, usable examples, and teaching tools.

Category

Tactical

Debate maneuvers that distract, derail, pressure, or strategically reroute the exchange.

How to spot it

31 fallacies in this category.

31

Is the argument still addressing the original issue, or has the conversation been steered away?

Category vs. family

A category is a diagnostic lens, so a fallacy may appear in more than one category. A family is the broader umbrella that gives the fallacy its single main home.

Ad hominem

Occurs when someone treats an attack on a person's character, motives, class, or biography as if it were a refutation of that person's argument.

TacticalEmotional
Foundational Middle school+
Ad hominem companion poster in a retro mid-century editorial cartoon style, illustrating occurs when someone treats an attack on a person's character, motives, class, or biography as if it were a refutation of that person's argument.

Appeal to accomplishment

Occurs when a claim is treated as true or weighty mainly because the person promoting it has impressive accomplishments in some other domain.

TacticalEvidential
Intermediate High school
Appeal to accomplishment companion poster in a retro mid-century editorial cartoon style, illustrating occurs when a claim is treated as true or weighty mainly because the person promoting it has impressive accomplishments in some other domain.

Appeal to emotion

Occurs when a conclusion is pushed mainly by triggering fear, pity, outrage, pride, or hope rather than by showing that the conclusion follows from the evidence.

TacticalEmotionalEpistemic
Foundational Middle school+
Appeal to emotion companion poster in a retro mid-century editorial cartoon style, illustrating occurs when a conclusion is pushed mainly by triggering fear, pity, outrage, pride, or hope rather than by showing that the conclusion follows from the evidence.

Appeal to poverty

Occurs when a claim is treated as more trustworthy, virtuous, or true mainly because its proponent is poor, ordinary, or from humble circumstances.

Tactical
Foundational High school
Appeal to poverty companion poster in a retro mid-century editorial cartoon style, illustrating occurs when a claim is treated as more trustworthy, virtuous, or true mainly because its proponent is poor, ordinary, or from humble circumstances.

Appeal to wealth

Occurs when a claim is treated as more credible or correct mainly because it comes from a rich, famous, or financially successful person.

Tactical
Foundational High school
Appeal to wealth companion poster in a retro mid-century editorial cartoon style, illustrating occurs when a claim is treated as more credible or correct mainly because it comes from a rich, famous, or financially successful person.

Argument from repetition

Occurs when repetition is treated as if it adds evidence, wearing down doubt or making a claim seem true through familiarity.

Tactical
Foundational Middle school+
Argument from repetition companion poster in a retro mid-century editorial cartoon style, illustrating occurs when repetition is treated as if it adds evidence, wearing down doubt or making a claim seem true through familiarity.

Argumentum ad baculum

Occurs when agreement is extracted by threat, intimidation, or coercive pressure rather than by showing that the claim is true.

TacticalEmotional
Foundational High school
Argumentum ad baculum companion poster in a retro mid-century editorial cartoon style, illustrating occurs when agreement is extracted by threat, intimidation, or coercive pressure rather than by showing that the claim is true.

Association fallacy

Occurs when a claim is accepted or dismissed because of some irrelevant association rather than because of the merits of the claim itself.

TacticalEvidential
Intermediate High school
Association fallacy companion poster in a retro mid-century editorial cartoon style, illustrating occurs when a claim is accepted or dismissed because of some irrelevant association rather than because of the merits of the claim itself.

Bare assertion fallacy

Occurs when a contested claim is simply asserted, often confidently, without the evidence needed to justify it.

EvidentialTactical
Intermediate High school
Bare assertion fallacy companion poster in a retro mid-century editorial cartoon style, illustrating occurs when a contested claim is simply asserted, often confidently, without the evidence needed to justify it.

Cherry picking

Occurs when someone selects only the evidence that supports a conclusion and ignores a wider body of evidence that weakens, qualifies, or reverses it.

TacticalEvidential
Foundational Middle school+
Cherry picking companion poster in a retro mid-century editorial cartoon style, illustrating occurs when someone selects only the evidence that supports a conclusion and ignores a wider body of evidence that weakens, qualifies, or reverses it.

Contextomy

Occurs when words are selectively excerpted from their original context in a way that changes or distorts what the speaker meant.

TacticalLinguistic
Intermediate Intro college
Contextomy companion poster in a retro mid-century editorial cartoon style, illustrating occurs when words are selectively excerpted from their original context in a way that changes or distorts what the speaker meant.

Demanding negative proof

Occurs when someone tries to protect a claim by insisting that critics must prove the claim false instead of the claimant first supplying adequate support.

TacticalEvidential
Intermediate High school
Demanding negative proof companion poster in a retro mid-century editorial cartoon style, illustrating occurs when someone tries to protect a claim by insisting that critics must prove the claim false instead of the claimant first supplying adequate support.

Empty refutation

Occurs when someone declares an argument false, debunked, or dishonest without identifying the specific flaw that would actually show it is false.

Tactical
Foundational High school
Empty refutation companion poster in a retro mid-century editorial cartoon style, illustrating occurs when someone declares an argument false, debunked, or dishonest without identifying the specific flaw that would actually show it is false.

Fallacy of many questions

Occurs when a question smuggles in one or more assumptions that have not been established, then pressures the listener to answer as if those assumptions were already sett...

Tactical
Intermediate High school
Fallacy of many questions companion poster in a retro mid-century editorial cartoon style, illustrating occurs when a question smuggles in one or more assumptions that have not been established, then pressures the listener to answer as if those assumptions were already settled.

False attribution

Occurs when support for a claim is borrowed from a source that is fabricated, misquoted, unqualified, anonymous in the wrong way, or otherwise not what it is presented to...

EvidentialTactical
Intermediate High school
False attribution companion poster in a retro mid-century editorial cartoon style, illustrating occurs when support for a claim is borrowed from a source that is fabricated, misquoted, unqualified, anonymous in the wrong way, or otherwise not what it is presented to be.

False surrender

Occurs when someone calls for a truce, balance, or 'agree to disagree' posture not because the evidence is genuinely inconclusive, but because their position is under pre...

Tactical
Intermediate High school
False surrender companion poster in a retro mid-century editorial cartoon style, illustrating occurs when someone calls for a truce, balance, or 'agree to disagree' posture not because the evidence is genuinely inconclusive, but because their position is under pressure and they want to freeze the score.

If-by-whiskey

Occurs when someone uses strategically shifting language that seems to support both sides by quietly changing the meaning of the key term to suit the audience.

Tactical
Intermediate High school
If-by-whiskey companion poster in a retro mid-century editorial cartoon style, illustrating occurs when someone uses strategically shifting language that seems to support both sides by quietly changing the meaning of the key term to suit the audience.

Judgmental language

Occurs when pejorative, loaded, or insulting language is used to steer judgment in place of actual support for the conclusion.

Tactical
Intermediate High school
Judgmental language companion poster in a retro mid-century editorial cartoon style, illustrating occurs when pejorative, loaded, or insulting language is used to steer judgment in place of actual support for the conclusion.

Misleading vividness

Occurs when a striking anecdote or emotionally intense case is used to make a problem seem more common, clear, or representative than the broader evidence allows.

TacticalPerceptualEvidential
Intermediate High school
Misleading vividness companion poster in a retro mid-century editorial cartoon style, illustrating occurs when a striking anecdote or emotionally intense case is used to make a problem seem more common, clear, or representative than the broader evidence allows.

Motte and bailey fallacy

Occurs when someone advances a bold, controversial claim, retreats under criticism to a weaker and easier-to-defend claim, and then returns to the stronger claim as if th...

TacticalLinguisticConceptual
Intermediate Intro college
Motte and bailey fallacy companion poster in a retro mid-century editorial cartoon style, illustrating occurs when someone advances a bold, controversial claim, retreats under criticism to a weaker and easier-to-defend claim, and then returns to the stronger claim as if the weaker claim had defended it.

Moving the goalpost

Occurs when evidence that was supposed to satisfy a stated standard is dismissed and a new, harder standard is introduced so the conclusion never has to be reconsidered.

TacticalEvidential
Foundational Middle school+
Moving the goalpost companion poster in a retro mid-century editorial cartoon style, illustrating occurs when evidence that was supposed to satisfy a stated standard is dismissed and a new, harder standard is introduced so the conclusion never has to be reconsidered.

Perverted analogy

Occurs when an analogy is deliberately stretched past its intended point so it can be mocked or refuted.

TacticalConceptual
Intermediate Intro college
Perverted analogy companion poster in a retro mid-century editorial cartoon style, illustrating occurs when an analogy is deliberately stretched past its intended point so it can be mocked or refuted.

Poisoning the well

Occurs when negative framing is introduced in advance so that whatever a person says next will be dismissed before it is fairly heard.

Tactical
Intermediate High school
Poisoning the well companion poster in a retro mid-century editorial cartoon style, illustrating occurs when negative framing is introduced in advance so that whatever a person says next will be dismissed before it is fairly heard.

Proof by verbosity

Occurs when a claim is protected by an avalanche of words, side points, jargon, or branching assertions that overwhelm reasonable scrutiny and create the illusion of dept...

TacticalLinguistic
Intermediate Intro college
Proof by verbosity companion poster in a retro mid-century editorial cartoon style, illustrating occurs when a claim is protected by an avalanche of words, side points, jargon, or branching assertions that overwhelm reasonable scrutiny and create the illusion of depth.

Red herring

Occurs when someone diverts attention from the unresolved issue by switching to a different issue that is easier, safer, or more emotionally useful.

TacticalEmotional
Foundational Middle school+
Red herring companion poster in a retro mid-century editorial cartoon style, illustrating occurs when someone diverts attention from the unresolved issue by switching to a different issue that is easier, safer, or more emotionally useful.

Straw man argument

Occurs when someone replaces an opponent's actual position with a weaker, more extreme, or simplified version and then refutes that easier target.

Tactical
Foundational Middle school+
Straw man argument companion poster in a retro mid-century editorial cartoon style, illustrating occurs when someone replaces an opponent's actual position with a weaker, more extreme, or simplified version and then refutes that easier target.

Style over substance fallacy

Occurs when the polish, confidence, charisma, or dramatic force of a presentation is treated as if it established the quality of the argument itself.

TacticalPerceptual
Foundational High school
Style over substance fallacy companion poster in a retro mid-century editorial cartoon style, illustrating occurs when the polish, confidence, charisma, or dramatic force of a presentation is treated as if it established the quality of the argument itself.

Thought-terminating cliché

Occurs when a familiar slogan or stock phrase is used to stop inquiry, deflect scrutiny, or create the feeling that an issue has already been settled.

Tactical
Intermediate High school
Thought-terminating cliché companion poster in a retro mid-century editorial cartoon style, illustrating occurs when a familiar slogan or stock phrase is used to stop inquiry, deflect scrutiny, or create the feeling that an issue has already been settled.

Tu quoque

Occurs when criticism is answered not by engaging the issue, but by pointing to similar hypocrisy or wrongdoing elsewhere.

TacticalEvidential
Foundational Middle school+
Tu quoque companion poster in a retro mid-century editorial cartoon style, illustrating occurs when criticism is answered not by engaging the issue, but by pointing to similar hypocrisy or wrongdoing elsewhere.

Two wrongs make a right

Occurs when someone treats one wrong act as justified because it responds to, retaliates against, or balances out another wrong.

TacticalEvidential
Intermediate High school
Two wrongs make a right companion poster in a retro mid-century editorial cartoon style, illustrating occurs when someone treats one wrong act as justified because it responds to, retaliates against, or balances out another wrong.

Vague insulators

Occurs when vague, elastic, or undefined terms are chosen so that a position sounds meaningful while resisting clear testing or criticism.

Tactical
Intermediate High school
Vague insulators companion poster in a retro mid-century editorial cartoon style, illustrating occurs when vague, elastic, or undefined terms are chosen so that a position sounds meaningful while resisting clear testing or criticism.