Categorically Yours & Typographical Musings†

Okamis Lamy fountain pens
Okami's Lamy fountain pens


One of the marks of being a good prof is when they see that students didn’t understand something and go over it again. My algebra prof has made a habit of this, especially when he goes over stuff in class too quickly. This happened last week and left me quite furious. Someone must have mentioned something to the prof², and he went over what we saw in the last hour again. This took an hour out of the three-hour class. I appreciated. I realized that there were some undergrads in our class, who weren’t familiar with some of the more abstract concepts of category theory³. It was an issue. Class was great today. I was drinking my strong milk tea and noting stuff down. We saw direct sums and (co)universal objects. Having proofs done with commutative diagrams is so elegant and simple.

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― is called a horizontal bar. I’ve been mysteriously making them appear when I touch typed my way through my day. It’s some combination of keys that I can’t seem to duplicate while trying to.

U+2015 <- unicode for this character