+++ title = "Pernicious numbers" description = "" date = 2019-09-10T18:35:58Z aliases = [] [extra] id = 17363 task = """ A pernicious number is a positive integer ...
Inspired by 30 seconds of code, this is a collection of reusable, tested, and copy-pasteable Java 21 compatible code snippets that you can understand in 30 seconds or less. If you're interested in ...
Over the last few years, I’ve been very slowly working up a short expository paper — requiring no knowledge of categories — on set theory done categorically. It’s now progressed to the stage where I’d ...
The recent discussion about the consistency of arithmetic made me want to brush up on my logic. I’d like to learn a bit about axioms for arithmetic that are weaker than Peano arithmetic. The most ...
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