**Notes on Categories and Groupoids**

by P. J. Higgins

**Publisher**: Van Nostrand Reinhold 1971**ISBN/ASIN**: 0442034067**ISBN-13**: 9780442034061**Number of pages**: 195

**Description**:

This book presents a self-contained account of the elementary theory of groupoids and some of its uses in group theory and topology. Category theory appears as a secondary topic whenever it is relevant to the main issue, and its treatment is by no means systematic.

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