In 1962 a mimeographed sheet of paper fell into my possession. It had been prepared by Ernest Adams of the Philosophy Department at Berkeley as a handout for a colloquim. Headed 'SOME FALLACIES OF FORMAL LOGIC' it simply listed eleven little pieces of reasoning, all in ordinary English, and all absurd. I still have the sheet, and quote a couple of the arguments here to give the idea. * If you throw switch S and switch T, the motor will start. There- fore, either if you throw switch S the motor will start, or, if you throw switch T the motor will start . * It is not the case that if John passes history he will graduate. Therefore, John will pass history. The disconcerting thing about these inferences is, of course, that under the customary truth-functional interpretation of and, or, not, and if-then, they are supposed to be valid. What, if anything, is wrong? At first I was not disturbed by the examples. Having at that time consider- able personal commitment to rationality in general and formal logic in par- ticular, I felt it my duty and found myself easily able (or so I thought) to explain away most of them. But on reflection I had to admit that my expla- nations had an ad hoc character, varying suspiciously from example to example.
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Seller: Plurabelle Books Ltd, Cambridge, United Kingdom
Hardcover. Condition: Very Good. Series: Synthese Language Library. as new, hardback, dustjacket, never used Altersfreigabe FSK ab 0 Jahre Language: English. Seller Inventory # 51309
Seller: Anybook.com, Lincoln, United Kingdom
Condition: Good. Volume 2. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In good all round condition. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,600grams, ISBN:9027708649. Seller Inventory # 7090413
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Seller: Kloof Booksellers & Scientia Verlag, Amsterdam, Netherlands
Condition: very good. Dordrecht : D. Reidel , 1978. Hardcover. Dustjacket. xvi,249 pp. 23 cm. Illustrated. Index. Bibliogarphy. (Synthese language library, 2). Condition : very good copy. ISBN 9789027708649. Keywords : PHILOSOPHY, philosophy. Seller Inventory # 290818
Seller: Bernhard Kiewel Rare Books, Grünberg, Germany
23 x 15. 249 Seiten. OLeinen. Ordnungsgemäß aus einer Universitäts-Bibliothek ausgesondert (Stempel, Rückenschild). Guter Zustand. Sprache: Englisch Gewicht in Gramm: 500. Seller Inventory # 111208
Seller: Stephen Dadd, Ashford, United Kingdom
Hardcover. Condition: ***NEW***. First Edition. 249pp. HARDCOVER Printed boards ***NEW BOOK*** Perfect & sealed. Size: 8vo - over 73/4" - 93/4" tall. Book. Seller Inventory # 14529/G-100