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location Vienna, Austria
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visits member for 3 years, 9 months
seen 1 hour ago

Yes! That's Benito Mussolini in my avatar! Why? I wanted an avatar that could wear hats, did a Google Image search on my name, and came across this; note the name of the artist. How could I not!? Plus, some might actually find it more fitting! (I'll change it back to the ol' standard after Winter Bash.)

Random praise for me:

You might see some necro-like-bumps from me. I'm trying to slowly edit/delete all my HINT answers from the site. I am also trying to stay away from giving hint answers in the future.

The last 10 answers I've posted:

  1. Zero sets in Mrówka spaces (22-Nov-2014)
  2. Regarding functions on $\omega_1$ (10-Nov-2014)
  3. Possible behaviours of the cofinality-of-neighbourhood function for topological spaces $X$ that are connected. (6-Nov-2014)
  4. Example of a $T_1$ space that does not have the property that every compact subspace of $X$ is closed. (5-Nov-2014)
  5. Why wouldn't someone accept Gentzen's consistency proof? (15-Oct-2014)
  6. Consistency of restricted forms of Martin's Axiom with the negation of the Continuum Hypothesis (8-Oct-2014)
  7. Spaces where all compact subsets are closed (2-Oct-2014)
  8. Is there always an equivalent metric which is not complete? (24-Sep-2014)
  9. Mary Ellen Rudin's proof that all metric space are paracompact (3-Sep-2014)
  10. Operators on the family of all subsets of a topological space that maybe generates a base for these family. (28-Aug-2014)

Yes, my answer-posting rate has slowed to a crawl. But I am generally happier with the questions I've been answering (and the answers I'm giving).

(Avatar image adapted from Lun-Yi Tsai's Surprised Again on the Diagonal, as found here.)


Dec
5
revised No polynomial of degree 3 in $\mathbb{R}[x]$ is a prime
question in body and not in title.
Dec
5
reviewed Reject No polynomial of degree 3 in $\mathbb{R}[x]$ is a prime
Dec
2
comment Cardinal number of the set of all one-to-one mappings of $A$ onto itself.
This question appears to be off-topic because it contains two largely unrelated questions which should be asked separately.
Dec
2
reviewed Approve Solving a second order differential equation using complex numbers
Dec
1
revised Need example for a topological space that isn't (T1,T2,T3), but is (T4)
added link to Wiki article
Nov
30
comment Need example for a topological space that isn't (T1,T2,T3), but is (T4)
This question appears to be off-topic because it is about two questions more than a question should have on this site. See MSE faq.
Nov
30
comment Is remaining single helpful in mathematical career?
Comments are not for extended discussion; this conversation has been moved to chat.
Nov
29
awarded  Nice Answer
Nov
28
revised Regularity of an “indiscrete extension” of a regular topology by a closed set
Improved (I think)
Nov
28
revised Regularity of an “indiscrete extension” of a regular topology by a closed set
no more hint.
Nov
26
revised Open subspaces of locally compact Hausdorff spaces are locally compact
added 329 characters in body
Nov
26
revised Open subspaces of locally compact Hausdorff spaces are locally compact
deleted 40 characters in body; edited tags; edited title
Nov
26
revised Open subspaces of locally compact Hausdorff spaces are locally compact
Filled out hint to answer.
Nov
26
comment Monty Hall Problem with Five Doors
Comments are not for extended discussion; this conversation has been moved to chat.
Nov
26
revised The function $G: x \mapsto 2^{x^2}$ maps $\mathbb{R}$ onto $\{ x \in \mathbb{R} : x \geq 1 \}$
added 12 characters in body; edited tags; edited title
Nov
26
comment Why does Power Set represented by $2^x$ takes only $0$ or $1$ as values for $x$
Comments are not for extended discussion; this conversation has been moved to chat.
Nov
25
revised Characterisation of Cantor-connectedness
No more hints
Nov
25
revised Characterisation of Cantor-connectedness
tidying up
Nov
25
revised The image of a derived set vs. the derived set of an image under a continuous injection
Tidied this up.
Nov
25
revised The image of a derived set vs. the derived set of an image under a continuous injection
No more hint.