Mathematics
David C. Ullrich's user avatar
David C. Ullrich's user avatar
David C. Ullrich's user avatar
David C. Ullrich
  • Member for 8 years, 3 months
  • Last seen more than 1 year ago
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20
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About

Nothing about me is of any interest whatever.

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16
Posts
73
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13
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1
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5
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1
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5
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6
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27
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Top posts
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All Questions Answers
Score Newest
question
75
"What have you tried?"...
Mar 18, 2018
question
22
"... including any attempts you have made to solve it."
Jul 19, 2018
question
14
Reference Request not a request for a reference?
Oct 11, 2015
question
13
Etiquette dilemma
Mar 2, 2018
answer
13
Are questions about history on topic?
Jun 26, 2016
question
12
Policy on posting links to pirated content?
Sep 27, 2020
question
10
Deleting meaningless answers?
Nov 26, 2017
question
9
No-delete policy...
Aug 19, 2018
question
8
Edit-Undelete versus new post...
Mar 12, 2020
question
4
Bookmarks somehow?
Jun 25, 2015
Top network posts
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81
Are there theoretical applications of trigonometry?
63
Did Joseph Fourier ever make a pure mathematical mistake?
56
What is the average rational number?
47
Is every noninvertible matrix a zero divisor?
40
Does every infinite field contain a countably infinite subfield?

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