Coherence theorem | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-02-18

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Coherence_condition


00:00:32 1 An illustrative example: a monoidal category
00:05:59 2 Further examples
00:06:19 2.1 Identity
00:07:06 2.2 Associativity of composition
00:07:18 3 References



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SUMMARY
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In mathematics, and particularly category theory a coherence condition is a collection of conditions requiring that various compositions of elementary morphisms are equal. Typically the elementary morphisms are part of the data of the category. A coherence theorem states that, in order to be assured that all these equalities hold, it suffices to check a small number of identities.