• barsoap@lemm.ee
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    5 months ago

    It’s a wonderful world where 1 / 0 is ∞ and 1 / -0 is -∞, making a lot of high school teachers very very mad. OTOH it’s also a very strange world where x = y does not imply 1 / x = 1 / y. But it is, very emphatically, an algebra.

    Mostly it’s pure numerology, at least from the POV of most of the people using it.