Reflexive and symmetric closures
Channel: Douglas Weathers
Date: 2020-07-01

We can close a relation under a desired property by constructing a new one, the smallest possible relation containing the old one with the desired property. Reflexive and symmetric closures are comparatively straightforward.

Meant to be watched before or after reading Chapter 16 of the open source textbook Elementary Discrete Mathematics (https://dweathers.github.io/174/book.html).