Monthly Archives: July 2015

Notes on Basic Category Theory, v.8a/8b

It’s a balancing act. On the one hand, I don’t want to annoy readers with over-frequent announcements of minor revisions. On the other hand, I don’t want to keep propagating flawed versions when I have an improved offering in hand! … Continue reading

Posted in Category theory | 5 Comments

Three quartets

In some sense, the Allegri Quartet have been going for 60 years. But after 30 years, none of the original four were still playing; and now after another 30 years none of those four replacements is still in the quartet … Continue reading

Posted in Music, Pavel Haas Qt | Leave a comment

Notes on Category Theory, v.8

At long last — more or less exactly nine months since I started intermittently writing them — there is a first complete version of my Notes on Category theory (as they are now called). Or at least, the Notes are complete in … Continue reading

Posted in Category theory | 5 Comments

Apple Music — some Day One impressions

So here I am, someone who — in phases — has over the years bought a lot of classical music. However, I have never really got into buying the music in the form of digital downloads. Much of the classical back catalogue can be … Continue reading

Posted in Music | 3 Comments