Abstract
In preceding chapters, the adjective “natural” was used, always in the context of some commutative diagram. This important term will now be defined, for it will allow us to compare different functors; in particular, it will make precise the question whether two functors are isomorphic. The notion of an adjoint pair of functors, though intimately involved with naturality, will not be discussed until Chapter 11, where it will be used.
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© 1988 Springer-Verlag New York Inc.
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Rotman, J.J. (1988). Natural Transformations. In: An Introduction to Algebraic Topology. Graduate Texts in Mathematics, vol 119. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-4576-6_10
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DOI: https://doi.org/10.1007/978-1-4612-4576-6_10
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4612-8930-2
Online ISBN: 978-1-4612-4576-6
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