Mathematics
lhf
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Apparently, this user prefers to keep an air of mystery about them.

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114 Is it bad form to write mysterious proofs without explaining what one intends to do? Dec 24 '16
95 Every nonzero element in a finite ring is either a unit or a zero divisor Aug 31 '11
90 Continuous bijection from $(0,1)$ to $[0,1]$ May 31 '11
84 Is Lagrange's theorem the most basic result in finite group theory? Mar 21 '11
80 Direct proof that $\pi$ is not constructible Jan 30 '12
78 Why “characteristic zero” and not “infinite characteristic”? Jan 12 '12
72 Proof: 1007 can not be written as the sum of two primes. Nov 13 '15
69 Why can't a set have two elements of the same value? Sep 17 '14
68 Why does Wolfram Alpha say the roots of a cubic involve square roots of negative numbers, when all three roots are real? Oct 31 '16
63 Elegant proofs that similar matrices have the same characteristic polynomial? Dec 2 '11
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