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It's Been Said Before

By Orin Hargraves

It's Been Said Before "examines why certain phrases become clichés and why they should be avoided -- or why they still have life left in them."

New from Cambridge University Press!


Sounds Fascinating

By J. C. Wells

How do you pronounce biopic, synod, and Breughel? - and why? Do our cake and archaic sound the same? Where does the stress go in stalagmite? What's odd about the word epergne? As a finale, the author writes a letter to his 16-year-old self.

Book Information


Title: An Essay on Contraction
Written By: Andre Fuhrmann

This book generalizes earlier theories of belief change to cover all kinds of changes of sets by sets. The principal focus is still on changes of belief sets in response to new evidence. But the formal theory extends to all domains with a closure operation and a preference structure, including, for example, systems of action. Contraction is the key notion; all other changes can be defined. Various new applications of the theory are outlined. A sentential version of contraction, subtraction, is proposed as a formal counterpart to "except"-locutions in natural language. Connections are emphasized with other areas at the interface between philosophical logic and artificial intelligence such as reasoning form default assumptions or from inconsistent premises.

Publication Year: 1997
Publisher: CSLI Publications
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Linguistic Field(s): Computational Linguistics
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Format: Hardback
ISBN: 1575860554
ISBN-13: N/A
Pages: 120

Format: Paperback
ISBN: 1575860546
ISBN-13: N/A