Abstract
Before around 1955, CT was almost exclusively used in algebraic topology and served there, at least up to Eilenberg and Steenrod, mainly as a conceptual (or linguistic) framework for the organization of a knowledge system. Arrows and arrow composition played an important role there, and the new framework emphasizing these aspects changed considerably the organization of topology as a whole (compare [Volkert 2002] chapter 6), but this change was rather a shift of emphasis from problem solving to conceptual clarification than direct progress in solving the problems formerly considered as central in the discipline (as, for instance, the classification of 3-manifolds). In the domain of algebraic topology, it was Kan who entered first a level of conceptual innovation on which CT came to serve also as a means of deduction. This means that results in the topological context have been obtained by the application of results established on the categorial level—results deeper than those available using solely the base concepts of category theory, i.e., results the proof (and already the formulation) of which used new, more involved concepts like adjoint functors and the general limit concept162.
Notice that I stress the use of these concepts, not the need to use them. I am interested in the pragmatic aspect here, not in proof-theoretical analysis.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
Rights and permissions
Copyright information
© 2007 Birkhäuser Verlag AG
About this chapter
Cite this chapter
(2007). Category theory in Homological Algebra. In: Tool and Object. Science Networks. Historical Studies, vol 32. Birkhäuser Basel. https://doi.org/10.1007/978-3-7643-7524-9_3
Download citation
DOI: https://doi.org/10.1007/978-3-7643-7524-9_3
Publisher Name: Birkhäuser Basel
Print ISBN: 978-3-7643-7523-2
Online ISBN: 978-3-7643-7524-9
eBook Packages: Mathematics and StatisticsMathematics and Statistics (R0)