PadreSantiago Posted November 29, 2005 Posted November 29, 2005 (edited) No queens are cyborgs. All queens are rocks. thus all rocks are cyborgs. No vampires are reptilians. Some reptilians are frogs. thus some frogs are vampires. No elves are blonds. Some elves are not crabs. Thus some crabs are not blonds. No sheep are boys. All writers are sheep. Thus some writers are boys. fallacy of the Undistributed Middle, fallacy of Illicit Process of the Major Term, fallacy of Illicit Process of the Minor Term,fallacy of Exclusive Premises, fallacy of Drawing an Affirmative Conclusion from a Negative Premise, Existential Fallacy It all makes my head hurts Edited November 29, 2005 by PadreSantiago
Guest JeffCR07 Posted November 30, 2005 Posted November 30, 2005 A properly constructed syllogism is always valid, but whether it is sound depends, like any argument, on whether or not the premises are true.
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