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Javi

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38 reputation
3
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visits member for 1 year, 4 months
seen Jun 5 '12 at 14:52
stats profile views 7

38 reputation
 bio website visits member for 1 year, 4 months
3 badges
 location seen Jun 5 '12 at 14:52
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4 Questions

views newest activity votes
 
3
votes
4
answers
276
views

Prove that $n=2^k -1$ is not a prime number, with $k=ab$. (Edit: $a\not=1$ and $b\not=1$)

elementary-number-theory discrete-mathematics
feb 1 '12 at 15:48 Javi 38
 
2
votes
2
answers
180
views

Prove that two sides are parallel in the reflection of an isosceles triangle

geometry euclidean-geometry
may 1 '12 at 20:07 Isaac 21.1k
 
1
vote
1
answer
201
views

Pigeonhole principle and sequences problem

discrete-mathematics pigeonhole-principle
feb 8 '12 at 19:45 Aryabhata 47.6k
1
1
vote
2
answers
152
views

Pigeonhole principle problem

pigeonhole-principle
dec 28 '11 at 17:03 André Nicolas 161k
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