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blargoner
  • Member for 11 years, 9 months
  • Last seen this week
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Hello. I sometimes make videos. I sometimes write words. I sometimes collect notes and errata.

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Top posts

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answer
9
Is the definition of all non-standard bases dependent on the standard basis?
Jan 22, 2023
question
7
Rank of a matrix over a ring?
May 17, 2021
question
6
Abstract symmetric definition of duality in linear algebra?
May 2, 2021
answer
5
Why are inverses of permutations in the formula for $det(A^T)$?
Aug 27, 2022
question
5
Exponentials in the category of graphs?
Nov 28, 2020
answer
5
Definition of the subcategory in book "Category Theory for Computing Science"
Jun 24, 2024
answer
5
To prove Cayley-Hamilton theorem, why can't we substitute $A$ for $\lambda$ in $p(\lambda) = \det(\lambda I - A)$?
Feb 2, 2023
answer
5
Prove that $\sum_{j=1}^r a_j\otimes b_j=0\Rightarrow b_j=0$ where $\{a_j\}$ is linearly independent?
Sep 19, 2020
question
4
Graphs of recursive functions
May 18, 2024
question
4
The normal form of a skew symmetric matrix
Oct 21, 2019

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What is our policy on AI-generated content?
33
A guided self-study anti-pattern?

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Difficulty with activesupport when attempting to deploy