Mathematics
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Math Gems

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

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  • Member for 7 years, 2 months
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  • Last seen Dec 17 '14 at 14:56

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48 Formal proof for $(-1) \times (-1) = 1$ Feb 15 '13
37 How did Euler prove the Mersenne number $2^{31}-1$ is a prime so early in history? Mar 22 '13
33 Why is every answer of $5^k - 2^k$ divisible by 3? Apr 25 '13
31 Where does the word “torsion” in algebra come from? Feb 11 '13
31 If $a^3 =a$ for all $a$ in a ring $R$, then $R$ is commutative. Jan 31 '13
29 How to prove the divisibility rule for $3\, $ [casting out threes] Apr 28 '13
27 In a group we have $abc=cba$. Is it abelian? Feb 10 '13
27 Polynomial: $p(x) = p(x+3)$. Mar 24 '13
24 Commutative property of ring addition Mar 30 '13
22 Looking to Acquire Intution Regarding the Fundamental Theorem of Arithmetic Mar 6 '13
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