a positive number smaller than every fraction

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Hand-picked by a BrighterTube curator · found via Reddit r/learnmath thread: Some criminally underwatched math channels on youtube · 86% confidence

Introduces infinitesimals rigorously through ordered field constructions.

What you'll learn

Builds a positive number smaller than every fraction, introducing non-Archimedean ordered fields.

Video by Michael Penn, played through YouTube's embedded player.

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