math

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General community for all things mathematics on @lemmy.world

Submit link and text posts about anything at all related to mathematics.

Questions about mathematical topics are allowed, but NO HOMEWORK HELP. Communities for general math and homework help should be firmly delineated just as they were on reddit.

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When you realize it (i.redd.it)

submitted 18 hours ago by ooli@lemmy.world to c/math@lemmy.world

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[–] Carnelian@lemmy.world 3 points 6 hours ago

It is not ambiguous. The set {a, b, c,…z} contains every letter. “x” being a popular choice to use as a variable in general does not confer to it any other special significance that would exclude it from the set of alphabetically arranged letters

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