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Arthur Fischer (moderator)

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. When is the closure of an equivalence relation automatically an equivalence relation? (15-May-2015)
  2. $X$ is A-space iff the frontier of any closed set in $X$ is compact. (25-Apr-2015)
  3. Between metacompactness and infinite Lebesgue covering dimension (21-Apr-2015)
  4. Totally separated, but the clopen sets do not form a basis (20-Apr-2015)
  5. Is there a topological space $X$ such that $C_p(X)$ is sequential but not Fréchet? (27-Mar-2015)
  6. Why we use $\mathrm{Fn}(\kappa\times\lambda,2,\lambda)$ to force $2^\lambda\ge\kappa$ instead of $\mathrm{Fn}(\kappa\times \lambda,2)$ (22-Feb-2015)
  7. Zero sets in Mrówka spaces (22-Nov-2014)
  8. Regarding functions on $\omega_1$ (10-Nov-2014)
  9. Possible behaviours of the cofinality-of-neighbourhood function for topological spaces $X$ that are connected. (6-Nov-2014)
  10. Example of a $T_1$ space that does not have the property that every compact subspace of $X$ is closed. (5-Nov-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.)

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