Mathematics
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Magdiragdag
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Planet designer specialized in coastlines.

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All Questions Answers
Score Newest
answer
34
What precisely is a vacuous truth?
Mar 31, 2014
answer
24
Are transcendental numbers computable?
Feb 6, 2014
answer
18
Show that $\sup(A \cup B)=\max\{\sup A,\sup B\}$
Feb 7, 2014
answer
17
A module over an algebra. Is it a vector space?
Mar 11, 2014
answer
10
Can a vector space $\{0\}$ exist?
Nov 23, 2021
answer
10
Empty space connected? If so, then what are its components?
Sep 24, 2013
answer
9
Examples of Commutative Rings with $1$ that are not integral domains besides $\mathbb Z/n\mathbb Z$?
Apr 2, 2014
answer
9
How to prove that at least one of $a,b,c,d$ is not divisible by $ad-bc$ if $ad-bc>1$?
May 9, 2014
answer
9
Categories: if $A \times B$ exists then $B \times A$ exists
Jul 6, 2021
answer
8
Prove that a linear transformation is invertible if and only if its associated matrix is invertible.
Oct 12, 2013
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Is it OK to flag an accepted answer because contains a significant, conceptual error?
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What is considered a distraction to an opponent?

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