Mathematics
Ove Ahlman's user avatar
Ove Ahlman's user avatar
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Ove Ahlman
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All Questions Answers
Score Newest
answer
20
Is there any number that I can't find?
Feb 20, 2018
answer
13
What's the negation of "One of the sentence is false"?
Feb 23, 2016
answer
11
Where is my solution wrong for this combinatorics problem?
Nov 16, 2017
answer
10
Why is Zero not composite?
Nov 24, 2017
answer
10
Is Category Theory similar to Graph Theory?
Apr 17, 2015
answer
7
Predicate Logic: Definite Quantification
Nov 23, 2017
answer
7
Prove by induction $ \sin x + \sin 2x + ... + \sin nx = \frac {\sin (\frac {n + 1} {2} x)} {\sin \frac{x}{2}} \sin \frac{nx}{2} $
Nov 20, 2015
answer
6
If Q is dense in R, why exist a family of open balls around rational points that does not cover R?
Mar 18, 2015
answer
5
Why we have 2 quantifiers in predicate logic?
Feb 26, 2018
answer
5
Short task in model theory / 1.st order logic
Feb 20, 2018
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