https://peertube.wtf/videos/watch/c39062cf-0156-4188-a4d6-158c35aae325 This is the second in a series of talks about universal algebra and lattice theory. I give examples of algebras, including magmas, semigroups, monoids, groups, rings, modules, semilattices, lattices, quasigroups, Latin squares, and n-ary magmas. The webpage for this series of talks can be found at https://aten.cool/2020ua.html. (Typo near the end: I acutally gave an example of an (n-1)-ary magma, so I was off by one.) Mon, 17 Aug 2026 03:46:04 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://peertube.wtf https://peertube.wtf/lazy-static/avatars/45856119-df14-4b5f-bff8-4807ae2cfbd2.png https://peertube.wtf/videos/watch/c39062cf-0156-4188-a4d6-158c35aae325 All rights reserved, unless otherwise specified in the terms specified at https://peertube.wtf/about and potential licenses granted by each content's rightholder.