“If the Moon is made of green cheese, then Napoleon lost the battle of Waterloo.
We would be committing this fallacy (i. e., affirming the consequent) if we used this sentence to claim that the Moon is made of green cheese. Pseudosciences employ this fallacy frequently, because it enables you to claim the truth of any premise you wish simply by choosing a true conclusion.”

Source: Just a Theory: Exploring the Nature of Science (2005), Chapter 11, “Logic and Mathematics: Scientists Like It Clear and Precise” (p. 177)

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Mordechai Ben-Ari 28
Israeli computer scientist 1948

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