John C. Baez (auth.), Eugenio Moggi, Giuseppe Rosolini's Category Theory and Computer Science: 7th International PDF

By John C. Baez (auth.), Eugenio Moggi, Giuseppe Rosolini (eds.)

ISBN-10: 354063455X

ISBN-13: 9783540634553

This booklet constitutes the refereed complaints of the seventh foreign convention on class conception and laptop technological know-how, CTCS'97, held in Santa Margheria Ligure, Italy, in September 1997.
Category thought draws curiosity within the theoretical machine technological know-how group as a result of its skill to set up connections among diverse components in machine technological know-how and arithmetic and to supply a number of familiar rules for organizing mathematical theories. This publication provides a range of 15 revised complete papers including 3 invited contributions. the subjects addressed comprise reasoning ideas for varieties, rewriting, software semantics, and structuring of logical systems.

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Additional info for Category Theory and Computer Science: 7th International Conference, CTCS '97 Santa Margherita Ligure Italy, September 4–6, 1997 Proceedings

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Lim T ) ° C_ R. (6) (7) (8) (9) Inclusions (6) and (7) hold if dora G = dora S, for then we get notdom G = n o t d o m S C notdom T since T C S. Hence noldom G C notdom T . T * = lim T and notdom G . (tim T ) ° C_ notdom T . (tim T) ° = (lira T . notdom T) ° = notdom T CR. e. id C tt. Inclusion (8) holds because G C_ T and so lim T . G C lim T T C lim T. 44 Finally, (9) holds under the assumption that G . (lira T ) ° C_ (lira T ) ° . R because then we obtain R/(lim T) °. G. (lira T) ° C_ R/(lim T) °.

This allows the construction a homotopy category of n-categories. Then, for two definitions of weak n-category to be considered equivalent, we require that their homotopy categories be equivalent. Dolan and the author have constructed the homotopy category of their ncategories, and Simpson [37] has constructed the homotopy category of Tamsamani's n-categories. Now we need machinery to check whether these homotopy categories, and those corresponding to other definitions, are equivalent. Once these preliminary chores are completed, there should be many exciting things we can do with n-categories.

3 6 (1995), 6073-6105. 4. J. Baez and J. Dolan, letter to R. Street, Nov. 30, 1995, corrected version as of Dec. edu/home/baez/ 5. J. Baez and J. Dolan~ Higher-dimensional algebra III: n-Categories and the algebra of opetopes, to appear in Adv. edu/home/baez/ 6. J. Baez and L. edu/home/baez/ 7. J. Baez and M. Neuchl, Higher-dimensional algebra I: Braided monoidal 2categories, Adv. Math. 121 (1996), 196-244. 32 8. M. Batanin, On the definition of weak w-category, Macquarie Mathematics Report No.

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Category Theory and Computer Science: 7th International Conference, CTCS '97 Santa Margherita Ligure Italy, September 4–6, 1997 Proceedings by John C. Baez (auth.), Eugenio Moggi, Giuseppe Rosolini (eds.)


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