Fault Library

Explore common faults in communication that can undermine critical thinking. Understanding these patterns helps you identify manipulation in arguments.

Claim

Assertions made by an author, which can be factual, opinion-based, or ambiguous.

Fallacy

Errors in reasoning that weaken or invalidate an argument.

Ad Hominem
Category: Fallacy

Text that critiques or attacks an entity rather than addressing the merits of their argument, position or idea.

Ad Hominem: Abusive
Category: Fallacy

Attacks an entity based on their character, rather than addressing the merits of their argument.

Ad Hominem: Circumstantial
Category: Fallacy

Attacks an entity based on their circumstances rather than the merits of their argument.

Ad Hominem: Guilt By Association
Category: Fallacy

Attacks an entity based on their associations, rather than addressing their argument.

Ad Hominem: Tu Quoque
Category: Fallacy

Accuses an entity of hypocrisy, rather than addressing the merits of their argument.

After Therefore Because
Category: Fallacy

The fallacy of concluding that because Event B followed Event A, Event A must have caused Event B, without sufficient evidence.

Appeal to Authority
Category: Fallacy

Asserts a conclusion is true based on an authority whose expertise is not legitimate/relevant, or whose bias is undue, or where other expert viewpoints are ignored.

Appeal to Ignorance
Category: Fallacy

Argues a claim is true because it has not been proven false, or false because it hasn’t been proven true.

Causal Leap/Non Sequitur
Category: Fallacy

The conclusion does not logically follow from the premises.

Circular Logic
Category: Fallacy

The conclusion of an argument is implicitly or explicitly assumed in one of the premises.

False Binary
Category: Fallacy

Presents a situation as having only two options when other viable alternatives exist.

False Equivalence
Category: Fallacy

Improperly compares two things as equivalent by ignoring significant differences.

Gambler's Fallacy
Category: Fallacy

Mistakenly believing that past independent events influence future probabilities.

Good Old Days Fallacy
Category: Fallacy

Argues something is correct because it aligns with an idealized past “golden age.”

Hasty Generalization
Category: Fallacy

Branching to a general conclusion based on insufficient evidence.

Loaded Question
Category: Fallacy

A question that contains a controversial or unjustified presupposition that biases the answer.

Naturalistic
Category: Fallacy

Assumes something is valid because it is 'natural.'

Poisoning the Well
Category: Fallacy

Preemptively discredits by presenting adverse information before introducing the subject.

Red Herring
Category: Fallacy

Introduces an irrelevant topic to divert attention from the original issue.

Slippery Slope
Category: Fallacy

Asserts a small step will inevitably lead to a significant (usually negative) chain of events without evidence.

Strawman
Category: Fallacy

Misrepresents an argument to make it easier to defeat.

Sunk Cost
Category: Fallacy

Continuing a course because of past investments, rather than rational future assessment.

Rhetoric

The art of effective or persuasive speaking or writing, especially the use of figures of speech and other compositional techniques.

Alliteration
Category: Rhetoric

Occurrence of the same letter or sound at the beginning of adjacent words.

Colloquial Expression
Category: Rhetoric

Use of informal words or phrases not typically found in formal writing.

Emphasis
Category: Rhetoric

Use of formatting, intensifiers, repetition, or structure to highlight content.

Emphasis: Italics
Category: Rhetoric

Specifically italicized text for emphasis.

Exaggeration/Hyperbole
Category: Rhetoric

Characterizing something as more significant than warranted.

Leading Question
Category: Rhetoric

A question that guides or pressures toward a particular answer without being a loaded question.

Loaded Language
Category: Rhetoric

Words or phrases with significant emotional connotations.

Loaded Language: Depends On Reader’s Bias
Category: Rhetoric

Connotations that depend on the reader’s biases.

Loaded Language: Neutral-but-Evaluative
Category: Rhetoric

Emotive language that is positive or laudatory.

Loaded Language: Pejorative/Negative
Category: Rhetoric

Emotive language that is negative or insulting.

Meme
Category: Rhetoric

Recognizable phrase or text block propagated online, often for comedic or satirical effects.

Metaphor
Category: Rhetoric

Figure of speech applying a term to something to which it’s not literally applicable.

Negative Framing
Category: Rhetoric

Emphasizing negative aspects to cast subject in a non-neutral way (beyond single words).

OAEF
Category: Rhetoric

An “Opinion Claim” presented without subjective markers, reading like objective fact.

OAEF: Speculative Assertion
Category: Rhetoric

An OAEF that is speculative.

Overly Certain/Dogmatic Tone (in Debatable Matters)
Category: Rhetoric

Presenting debatable matters with excessive assertiveness or finality, dismissing alternatives.

Sarcasm/Irony🤔?
Category: Rhetoric

Language where intended meaning differs from literal (often ironic or exaggerated).

Potentially Misleading Implication/Spin
Category: Rhetoric

Language that is literally true but phrased to encourage a biased interpretation.

Scare Quotes
Category: Rhetoric

Quotation marks used to elicit doubt or attention, not for introducing unfamiliar terms.

Simile
Category: Rhetoric

A figure of speech using “like” or “as” to compare two different things.

Understatement/Minimization
Category: Rhetoric

Characterizing something as significantly less than warranted.

Vivid Imagery
Category: Rhetoric

Language that creates strong sensory mental pictures.

Informational Deficiency

Gaps in information, such as missing context or oversimplification, that can obscure the truth.

Sourcing

Issues related to the citation and reliability of sources used to support claims.

Positive

Elements of communication that are clear, honest, and constructive.

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