The Harmony Learning Community Blog

News, Updates, Program Recaps, and Homeschooling Information

Category Theory #2: Grappling with Abstraction

(November 1, 2018) “That’s a pig!” said F, as we all walked over the picnic tables to start our Math Circle outside today. “No, Penelope is not a pig. She is a pig puppet. There’s a big difference,” I replied as we sat down. This seemingly inane comment of mine captured everyone’s attention.   PIG-PUPPET YEARS “You know how it…

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Category Theory 1: Odd One Out

(October 25, 2018) An important concept in category theory, indeed in mathematics itself, is deciding which attributes to ignore when you conduct mathematics. Context matters. When you’re signing a contract to buy a car, you may not care what color the contract is printed on. But when you’re sending out your wedding invitations, you might care about the paper color…

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