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All Questions Answers
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question
9
Am I wrong or is my professor wrong? (Basic measure theory/set theory)
Mar 1
answer
8
How can Cyclic groups be infinite
Oct 4, 2020
answer
8
Is there a such thing as a free group generated by a free group?
Mar 19
question
5
Proof that transpositions generate $S_n$, and proof that $\#(S_n) = n!$ (Lang's Algebra p. 13)
Sep 25, 2020
question
4
Why is the power set monoid stable under the inclusion order?
Sep 26, 2020
question
4
Understanding the proof and meaning of the Butterfly lemma (Zassenhaus) (Lang's Algebra, pp. 20--21)
Oct 8, 2020
question
4
How does calculus generalize?
Apr 23, 2021
question
4
If $\lvert X_{ij}\rvert \leq 1$ for all $i, j$, how do we show that the diagonal elements of $(X^T X)^{-1}$ are at least $\frac{1}{n}$?
Oct 14, 2021
question
4
Standard Monty Hall problem: proof that switching is optimal?
Sep 15, 2021
answer
4
Order of learning measure theory and functional analysis
Feb 5
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7
What is the pun in Fowles' The Magus?
6
How to reconcile these two versions of a "linear model"?
5
Most powerful test of size zero for $\theta$ given random sample from $U(0, \theta)$
5
What does it mean for George Washington to be "a Fabius and Camillus"?

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