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Bookmarked Topics in Ring Theory and Modules by Michael Miller (UCLA Extension)

Topics to be discussed include the isomorphism theorems; ascending and descending chain conditions;  prime and maximal ideals; free, simple, and semi-simple modules; the Jacobson radical; and the Wedderburn-Artin Theorem.

Ring theory is a branch of abstract algebra that deals with sets—for example, the collection of all integers—that admit both additive and multiplicative operations. Modules generalize the notion of vector spaces, but with scalars drawn from a ring rather than a field. Beginning with a survey of the basic notions of rings and ideals, the course explores some of the elegant algebraic structuring that defines the behavior of rings—both commutative and non-commutative—and their associated modules. Topics to be discussed include the isomorphism theorems; ascending and descending chain conditions; prime and maximal ideals; free, simple, and semi-simple modules; the Jacobson radical; and the Wedderburn-Artin Theorem. Theory will be motivated by numerous examples drawn from familiar realms of number theory, linear algebra, and real analysis.

Mike Miller has announced this fall’s math course at UCLA. 
Liked #141: Intellectual Exoskeletons — Andy Matuschak by trst (huffduffer.com)
From language and writing to the Hindu-Arabic numeral system, computers and Adobe Photoshop, our species has a history of inventing tools for augmenting our own intelligence. But what comes next? Andy Matuschak is a developer and designer. He helped build iOS at Apple, founded and led Khan Academy's...
Likes #141: Intellectual Exoskeletons — Andy Matuschak.
Replied to a post by Ryan BarrettRyan Barrett (snarfed.org)
https://snarfed.org/instagram-atom-logo.png https://snarfed.org/instagram-atom-logo.png Re-launched instagram-atom, my side project that lets you read your Instagram feed in any feed reader, with new browser extensions for Chrome and Firefox. Feel free to try it out, feedback is welcome!
God bless you Ryan Barrett!
Bookmarked On the Origin of Species: The Preservation of Favoured Traces by Ben Fry (benfry.com)
We often think of scientific ideas, such as Darwin's theory of evolution, as fixed notions that are accepted as finished. In fact, Darwin's On the Origin of Species evolved over the course of several editions he wrote, edited, and updated during his lifetime. The first English edition was approximately 150,000 words and the sixth is a much larger 190,000 words. In the changes are refinements and shifts in ideas — whether increasing the weight of a statement, adding details, or even a change in the idea itself.
What a spectacular visualization of Darwin’s On the Origin of Species.
Replied to a tweet by Jan Knorr (Twitter)
Reclipped is on my radar, but I haven’t experimented with it yet. For YouTube annotation, I quite like https://docdrop.org/ which dovetails w/ @Hypothes_is. For other online video I will often use their page annotations w/ timestamps/media fragments.
Liked AJ Sadauskas (@ajsadauskas@aus.social) (Aus.Social)
The thing about Twitter is that it really lacks a lot of the features you'd expect from a true Mastodon replacement. For example, there's no way to edit your toots (which they, confusingly call "tweets"—let's face it, it's a bit of a silly name that's difficult to take seriously). "Tweets" can't be covered by a content warning. There's no way to let the poster know you like their tweet without also sharing it, and no bookmark feature. There's no way to set up your own instance, and you're basically stuck on a single instance of Twitter. That means there's no community moderators you can reach out to to quickly resolve issues. Also, you can't de-federate instances with a lot of problematic content. It also doesn't Integrate with other fediverse platforms, and I couldn't find the option to turn the ads off. Really, Twitter has made a good start, but it will need to add a lot of additional features before it gets to the point where it becomes a true Mastodon replacement for most users. #twitter #mastodon #twittermigration
Likes AJ Sadauskas (@ajsadauskas@aus.social).
Replied to grahamsz (@grahamsz@indieweb.social) (Indieweb.Social)
Anyone got any ideas for a small #indieweb project that might be useful for a small group. I have a super open-ended coding assignment for a class, and could probably stand up something usable in that time if i could find a niche that isn't super full of better-supported projects.
@grahamsz@indieweb.social It could be transformational for many to have a micropub client/service such that a person could log into it and either authenticate to a variety of services APIs (or as a failsafe plug in an RSS feed from services) and then have all of their siloed content automatically copied over to their personal website as it was posted. Essentially PESOS as a service.
Bookmarked Indxd (indxd.ink)
Filling up notebooks is great - but what happens when you need one obscure factoid that's stashed somewhere among dozens of notebooks? Searchability is Analog's Achilles heel.

Introducing Indxd
I wanted a simple, searchable index of all the topics in all my notebooks. So I built it, and you can use it too. Indxd lets you quickly enter notebooks and their topics, then search and browse everything.
INDXD is a digital, web-based index tool for your analog notebooks.

Ostensibly allows one to digitally index their paper notebooks (page numbers optional). It emails you weekly text updates, so you’ve got a back up of your data if the site/service disappears.

This could potentially be used by those who have analog zettelkasten practices, but want the digital search and some back up of their system.

ᔥ sgtstretch in @Gaby @pimoore so a good friend of mine makes INDXD which is for indexing analog notebooks and being able to find things. I don’t personally use it, but I know @patrickrhone has written about it before. ()