Mathematics
Marcin Łoś's user avatar
Marcin Łoś's user avatar
Marcin Łoś's user avatar
Marcin Łoś
  • Member for 9 years, 11 months
  • Last seen this week
Profile Activity

10 Questions

Score Activity Newest Views
12 votes
1 answer
703 views

Endomorphisms of forgetful functor $\mathbf{Grp}\to \mathbf{Set}$

9 votes
1 answer
896 views

A locally metrizable, Lindelöf Hausdorff space that is not metrizable

8 votes
1 answer
346 views

Distributive nearring

8 votes
1 answer
527 views

Non-orthogonal projections summing to 1 in infinite-dimensional space

5 votes
1 answer
215 views

Proof of paracompactness of CW-complexes (J. Lee, Introduction to Topological Manifolds)

5 votes
1 answer
267 views

MacLane's CWM Exercise

4 votes
1 answer
259 views

Closed surjection that does not preserve regularity

4 votes
2 answers
199 views

Are there long arithmetic progressions non-coprime with the given number?

2 votes
3 answers
227 views

Example of ring $R$ with ideals $I\neq J$ such that $R/I \cong R/J$ as modules

2 votes
2 answers
493 views

Fermat's Curve is not rational (Perrin's "Algebraic Geometry - An Introduction")

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