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Shocked catslothman wrote
on January 28th, 2011 at 07:34 pm

It wasn’t until I took a college course that derived the real numbers from elementary set theory that I understood why all of my grade school math textbooks started with set theory and then dropped it like a hot potato. I think someone was trying to set up the foundation for getting that deep understanding of numbers, and then the remnants of that were what actually wound up in the texts.

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