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The Fallacy of Equivocation in Critical Thinking

The fallacy of equivocation is an informal logical fallacy in which a single term is used with two or more distinct meanings across the premises of an argument, creating the illusion of a valid inference while the reasoning actually fails. It belongs to the domain of critical thinking and informal logic, specifically the study of language-dependent fallacies, and relates to the broader concepts of argument validity and soundness (a valid argument with true premises is sound and guarantees a true conclusion) by showing how apparent validity can be undermined by semantic ambiguity rather than structural error.