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False Analogy

Weak Analogy · Faulty Analogy

A logical fallacy where two things are compared as if they're alike in a relevant way, when in fact the similarities are superficial and the comparison breaks down.

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Origin

While Aristotle first systematically studied fallacies in De Sophisticis Elenchis (Sophistical Refutations), British philosopher John Stuart Mill was one of the first to formally examine analogical reasoning in detail during the 19th century. Mill's work on inductive logic analyzed how analogies can mislead, using examples like inferring a person is lazy from observing their sibling's laziness. The systematic study of fallacies revived in the later 20th century across philosophy, logic, and rhetoric.

Updated February 22, 2026