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Mathematics
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Airymouse's user avatar
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Airymouse
  • Member for 9 years, 9 months
  • Last seen more than 9 years ago
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Top posts

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19
What are some counter-intuitive results in mathematics that involve only finite objects?
Dec 2, 2016
6
In the history of mathematics, has there ever been a mistake?
Dec 3, 2016
3
Removable discontinuity or asymptote?
Feb 12, 2017
2
Is there a "set" theory in which sets are defined in terms of functions, and functions are determined by a bunch of axioms?
Jan 1, 2017
2
$xy$ is a quadratic residue mod $p$ iff $x$ is a quadratic residue mod $p$, where $y$ be a (nonzero) quadratic residue mod $p$
Aug 17, 2016
2
Problem in understanding the proof of "every nonempty set of natural numbers has a smallest member".
Sep 10, 2016
2
Limit point definition of a closed set, versus complement of open set definition?
Sep 10, 2016
1
Who has considered the LCM of the multiplicative order of the divisors of p-1, where p is a prime, for which p-1 is square free?
Dec 8, 2016
1
Why does the "iff" wording for a biconditional imply a double implication?
Aug 4, 2016
1
Composition relation of R1 ∘ R2
Aug 6, 2016

Top network posts

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9
Experts on ELU assure us that there is no subjunctive mood in English. How should we who have been mistaught refer to what we were taught?
9
Word for repeatedly reading a word incorrectly and assuming the spelling of the word is as read?
8
Is there a well-known secular sentence that uses all three of the imperative, indicative, and subjunctive moods?
8
When and why did “mess” come to mean an untidy condition?
7
Why is it that modern English readily accepts forming the adjectival form of some family member's names (e.g. motherly) but not others (e.g. sonly?)