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Enlightened

First to answer and accepted with score of 10 or more. This badge can be awarded multiple times.

Arthur

5,52417 silver badges27 bronze badges

earned this badge 5 times.

Order of the product of two commuting elements with coprime orders in a group.

Awarded Feb 12, 2021 at 19:17

Short method to prove the irreducibility of $x^7+21x^5+35x^2+34x-8$ over $\Bbb Q$

Awarded Apr 25, 2015 at 8:42

Given the polynomial $(x-1)(x-8)(x-31)-1$, how do you conclude that its roots are irrational?

Awarded Mar 21, 2014 at 15:29

Prove that there is no homomorphism from $\mathbb{Z}_{8} \oplus \mathbb{Z}_{2}$ ont0 $\mathbb{Z}_{4} \oplus \mathbb{Z}_{4}$

Awarded Nov 30, 2013 at 12:38

Proving that $n^2-l$, $n^2$ and $n^2+l$ can't all be perfect squares

Awarded Oct 10, 2013 at 10:52

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