Mathematics
John Douma's user avatar
John Douma's user avatar
John Douma's user avatar
John Douma
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All Questions Answers
Score Newest
answer
28
Proof: 1007 can not be written as the sum of two primes.
Nov 13, 2015
answer
19
Counting binary operations on a set with $n$ elements
Apr 28, 2013
answer
13
How do we know the ratio between circumference and diameter is the same for all circles?
May 1, 2016
answer
12
How do I find a point a given distance from another point along a line?
Jun 2, 2013
answer
12
What is sum of all positive odd integers less than $1000$?
Jun 12, 2013
answer
11
What is the Idea of a Relative Open Set?
May 29, 2013
answer
10
Problem with basic definition of a tangent line.
Apr 18, 2016
answer
9
Why is it that if a ring is simple, its center must be a field?
Apr 1, 2018
answer
9
Why do linear algebra books have this cover?
May 31, 2021
answer
8
If two sets $A$ and $B$ have equal power sets, can we conclude that $A=B$?
Oct 7, 2015

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