Abstract
Homology theory deals repeatedly with the formal properties of functions and their composites. The functions concerned are usually homomorphisms of modules or of related algebraic systems. The formal properties are subsumed in the statement that the homomorphisms constitute a category. This chapter will examine the notions of module and category.
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© 1995 Springer-Verlag Berlin Heidelberg
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Mac Lane, S. (1995). Modules, Diagrams, and Functors. In: Homology. Classics in Mathematics, vol 114. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-62029-4_2
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DOI: https://doi.org/10.1007/978-3-642-62029-4_2
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-58662-3
Online ISBN: 978-3-642-62029-4
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