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Mathematics
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vidyarthi
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17
Why does $(128)!$ equal the product of these binomial coefficients $128! = \binom{128}{64}\binom{64}{32}^2 \dots \binom21^{64}$?
Jun 24, 2016
14
Why do we want complete spaces? We don't we just use closed spaces?
Dec 13, 2016
12
$x-\frac1x+y-\frac1y=4\,$ has no rational solutions?
Jan 3, 2017
9
If $f(x)=f(2x)$, then $f$ is differentiable
Jan 27, 2020
9
If the number of units of a ring is odd, then the ring has cardinality as a power of two [duplicate]
Jul 16, 2020
8
Is the function $f(n)=$ "First prime greater than or equal to $n$" from the natural numbers to the prime numbers bijective?
Nov 22, 2016
8
Diagonalizability of elements of finite subgroups of general linear group over an algebraically closed field
Mar 10, 2018
7
Existence of fixed point for a continuous function on an infinite closed set
Feb 9, 2020
7
Can anything free compete with Wolfram Alpha?
Dec 31, 2016
7
Complex integral with conjugate as an exponent
Sep 20, 2017
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What is a good forum for math discussion?
4
Should we blacklist [homeomorphism]?
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14
Every function on reals a sum of two surjective real functions?
12
What is the Birth date of Adi-Sankarācharya?
11
Does the Adiyogi of Sadhguru have a scriptural basis
8
Jyotisha-Shastra and prediction about death?
7
Can American Math. Monthly be used to publish hard research?