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Jan
13
awarded  Popular Question
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5
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Dec
30
awarded  Good Question
Nov
16
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Sep
7
awarded  Taxonomist
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16
awarded  Yearling
Nov
26
awarded  Notable Question
Jul
2
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Jul
2
awarded  Inquisitive
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8
awarded  Notable Question
Jan
31
accepted Is there any way to define morphisms between filters in order to get a category, one which its opposit category would be the category of ideals?
Jan
15
accepted Set-valued functors as the colimit of a certain diagram of representable functors
Jan
15
asked Set-valued functors as the colimit of a certain diagram of representable functors
Jan
12
comment The origin of the function $f(x)$ notation
Oh, I don't bet. Here is wiki's "By 1718, Johann Bernoulli "had come to regard a function as any expression made up of a variable and some constants",[8] while Alexis Claude Clairaut (in approximately 1734) and Leonhard Euler introduced the familiar notation "f(x)" for the value of a function"
Jan
12
comment The origin of the function $f(x)$ notation
Weierstrass, I bet.
Jan
12
awarded  Good Question
Oct
28
awarded  Popular Question
Oct
27
accepted What does the following notation means in the context of 2-categories? $\bullet$