logical-fallacy-detector
Logical Fallacy Detector
Fallacy Categories
1. Formal Fallacies
Errors in logical structure — the conclusion doesn't follow from premises even when they're true. Key types: affirming the consequent, denying the antecedent, undistributed middle, illicit major/minor.
→ See references/taxonomy/formal-fallacies.md
2. Relevance Fallacies
Premises are irrelevant to the conclusion — they distract or misdirect. Key types: ad hominem (abusive, circumstantial, tu quoque), straw man, red herring, appeal to authority, appeal to emotion, bandwagon, genetic fallacy.
3. Ambiguity Fallacies
Arguments exploit unclear language — key terms shift meaning mid-argument. Key types: equivocation, amphiboly, composition, division.
4. Presumption Fallacies
Arguments assume what they need to prove or artificially restrict options. Key types: begging the question, false dilemma, hasty generalization, slippery slope, circular reasoning, loaded question, no true Scotsman.
→ See references/taxonomy/informal-fallacies.md