Mathematics
Erik D's user avatar
Erik D's user avatar
Erik D's user avatar
Erik D
  • Member for 3 years, 3 months
  • Last seen more than a month ago
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Mathematician

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All Questions Answers
Score Newest
answer
5
What's the meaning of defining a functor in a natural way?
Sep 8, 2020
question
4
Is the formula $\neg\neg\forall x (\neg P(x) \,\vee\, \neg\neg P(x))$ provable in intuitionistic logic?
Jun 11, 2021
answer
4
Indecomposable but reducible representation and their consequences. Examples.
Aug 27, 2020
answer
3
Let $M = K + L$ and let $f: M \to N$ be an epimorphism. Prove that $N = f(K) \oplus f(L)$ if $K \cap L = \operatorname{Ker}f$
Jan 21, 2021
answer
3
Finite representation type of certain triangular matrix ring
Aug 18, 2021
answer
3
Maximal subfield of the division algebra is splitting field
Oct 26, 2021
answer
3
Does a sequence in a subset of a compact set in a metric space have a convergent subsequence?
Apr 12, 2022
answer
2
Proving that the Octonion Norm Respects Multiplication
Aug 27, 2020
answer
2
Problem with showing that operations of defined set are $n$-transitive
Sep 2, 2020
answer
2
Let E be a non empty 􏰁finite set, and let ∗ be an associative law on E. Show that there exists an element s ∈ E such that s ∗ s = s.
Sep 25, 2020
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What are some examples of colorful language in serious mathematics papers?
8
Elementary proof of an inequality for the Radon-Hurwitz numbers

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