Wikipedia:Reference desk/Archives/Mathematics/February 2022

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 * 1) English

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 * 1) Definition of a topological space by neighborhoods

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 * 1) Height of Simplexes

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 * 1) Multiplication methods

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 * 1) Proofs of rational bounds on π

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 * 1) Name for natural numbers plus their reciprocals?

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 * 1) The meaning of div(x, y)

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 * 1) Sides of a pyramid
 * 2) does an N-simplex of side x inside of an N-cube of side x always contain the center of the N-cube?
 * 3) Ancient Greek anecdote