Not Florence …

In latter years, Before Covid, we went to Florence a number of times before Christmas. It is a real delight then, when the city is largely free of other tourists. But it was not to be, this year. So there is only my virtual self, slouching down a deserted backstreet, as conjured up by ChatGPT.

I’ve been writing a bit about categories instead, which is distracting but hardly compensates. But it does mean that now all but the current last chapter of Category Theory II has been updated. It has taken me longer than it should have done, but the newly revised penultimate chapter is (I hope) both tidier and more accurate than it was. You can download the whole current draft here. And who knows? — with just one chapter to go, there might be a complete revised draft by the end of the year. Then I’ll have to think exactly what I’m going to do with it! (As always, you can download Category Theory I and other categorial goodies here.)

Later: there is now an updated first pass through the last chapter too …

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