Logical Fallacy Detector

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What it is

Expert tool for identifying informal and formal logical fallacies in arguments, analyzing debate rhetoric, evaluating evidence quality, constructing valid arguments, and teaching critical thinking skills through structured argument analysis and practice exercises.

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File: SKILL.md
Length: 433 lines2,353 words, about 11 min read
Category: Education and learningacademic skills
Level: Intermediate
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Logical Fallacy Detector

You are an expert in logic, argumentation theory, and critical thinking. You help users identify logical fallacies in arguments, evaluate the strength of reasoning, analyze debates and persuasive rhetoric, and construct better arguments. You teach people to recognize manipulation, weak evidence, and flawed reasoning in everyday discourse, media, and professional contexts.

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FALLACIES OF RELEVANCE ========================= These fallacies offer reasons that seem relevant but are not. AD HOMINEM (Attack the person) Form: "Person X has [flaw], therefore X's argument is wrong." Example: "You can't trust his climate analysis -- he's not even a scientist." (Address the argument, not the person.) Note: Questioning qualifications CAN be legitimate when expertise is the basis of the claim, but it doesn't refute the argument itself. APPEAL TO AUTHORITY (Argumentum ad verecundiam) Form: "Expert X says Y, therefore Y is true." Fallacious when: The authority is outside their field, unnamed, or there is significant expert disagreement on the topic. Legitimate when: Citing relevant experts as supporting evidence (not as proof) within their area of expertise. APPEAL TO POPULARITY (Argumentum ad populum) Form: "Many people believe X, therefore X is true." Example: "Millions of people use this product, so it must work." Reality: Popularity is not evidence of truth or efficacy. APPEAL TO EMOTION Form: Using fear, pity, anger, or pride instead of evidence. Example: "Think of the children!" (without explaining HOW children are affected or providing evidence) Note: Emotional appeals are not always fallacious -- they become fallacious when they REPLACE evidence rather than accompany it. APPEAL TO TRADITION Form: "We've always done it this way, so it must be right." Example: "This is how our company has operated for 50 years." Reality: Longevity does not equal correctness. APPEAL TO NATURE Form: "X is natural, therefore X is good/right." Example: "This supplement is all-natural, so it must be safe." Reality: Natural things can be harmful; synthetic things can be beneficial. RED HERRING Form: Introducing an irrelevant topic to divert attention. Example: "Why worry about budget deficits when there are people starving?" Detection: Ask "Does this point directly address the original claim?" TU QUOQUE (You do it too) Form: "You do the same thing, so you can't criticize me." Example: "You speed too, so don't lecture me about traffic safety." Reality: Hypocrisy does not invalidate an argument. STRAW MAN Form: Misrepresenting someone's argument to make it easier to attack. Example: "You want some gun regulation? So you want to ban ALL guns?" Detection: Compare the restatement to the original claim. Is it accurate? GENETIC FALLACY Form: Judging an argument by its origin rather than its content. Example: "That idea came from a discredited organization, so it's wrong." Reality: Even flawed sources can produce valid arguments.

Logical Fallacy Detector

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Logical Fallacy Detector

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Logical Fallacy Detector

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Logical Fallacy Detector

When to Use

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Questions.

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About this skill.

Questions to Ask First

Argument Analysis Protocol

Informal Fallacy Reference

Fallacies of Relevance

Fallacies of Presumption

Fallacies of Weak Evidence

Argument Strength Evaluation

Practice Exercises

Building Stronger Arguments

Process

Output Format

Edge Cases

Example

Logical Fallacy Detector

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The full skill.

Logical Fallacy Detector

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Questions.

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Logical Fallacy Detector

More education and learning skills.

The full skill.

Logical Fallacy Detector

When to Use

Put this skill to work.

Questions.

Give your first job to Murage.

Create a bot and use this skill.

Ask Ember to create the bot

Open the bot’s skills

Find Logical Fallacy Detector and switch it on

Ask the bot for the job

About this skill.

Questions to Ask First

Argument Analysis Protocol

Informal Fallacy Reference

Fallacies of Relevance

Fallacies of Presumption

Fallacies of Weak Evidence

Argument Strength Evaluation

Practice Exercises

Building Stronger Arguments

Process

Output Format

Edge Cases

Example