Brian M. Scott

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location Cleveland Heights, OH
age 65
visits member for 1 year, 11 months
seen 13 hours ago
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Retired professor emeritus at Cleveland State University. I’m a set-theoretic and general topologist with an interest in combinatorics. I’m also interested in linguistics, especially historical linguistics.


153,929 Reputation

graph time post
10 today
+10 1 hour ago upvote Prove that the index of the set of left coset in a cyclic group is finite
+10 5 hours ago upvote 6-letter words of ABC so “AAB” does NOT appear
-10 5 hours ago removed User was removed
305 yesterday
+55 08:53 5 events Regular $T_2$ space which is not completely regular.
+35 17:16 4 events Topology for convergent sequences
+30 08:24 3 events Proving that Euclidean space having the infinity metric is a complete metric space (stuck)
+30 04:33 3 events Prove that the index of the set of left coset in a cyclic group is finite
+25 06:41 2 events Using generating functions, Find a closed formula to next expression: $\sum_{k=0}^m{k(k+2)}$
+20 13:48 2 events Two terms that I want to understand: weakest topology and jointly continuous (in the following context).
+15 19:44 12 events Getting rid of a floor function in the next expression:$\left\lfloor\frac{(x-2)^2}{4}\right\rfloor $, It is known x is odd.
+15 19:10 5 events Image of a union of collection of sets as union of the images
+15 18:50 2 events Pigeon holes principle
+15 15:09 accept Classes and Sets
+10 23:07 2 events Graph with degree sequence (3,3,3,3,3,3)
+10 06:30 upvote Making Tychonoff Corkscrew in Counterexamples in Topology rigorous?
+10 03:12 upvote Every paracompact space with the Suslin property is Lindelöf
+10 02:51 upvote A characterization of second countability
+10 02:06 upvote A metrizable Lindelöf space has a countable basis
21:34 upvote How many functions $ f: \{1, 2, 3, \dots, 10\} \to \{0,1\}$ satisfy $f(1) + f(2) + \dots + f(10) = 2$?
19:31 upvote Evaluating Sums Algebraically or Combinatorially
19:25 5 events Two questions on finite abelian groups
18:18 2 events Study of Set theory: Book recommendations?
17:56 2 events Is a closed $G_\delta$ set in a Hausdorff space always a zero set?
17:00 upvote About 0.999… = 1
14:46 upvote Proof related to minimum and maximum degree of vertices of an undirected graph
14:33 upvote $\sum_{\alpha<\omega_2}|\alpha|^{\aleph_0}=\aleph_2\cdot\aleph_1^{\aleph_0}$
245 2 days ago
+45 19:22 4 events How many functions $ f: \{1, 2, 3, \dots, 10\} \to \{0,1\}$ satisfy $f(1) + f(2) + \dots + f(10) = 2$?
+35 23:34 6 events Two terms that I want to understand: weakest topology and jointly continuous (in the following context).
+20 20:59 2 events “Set of all formal products” - what does this mean?
+20 13:24 2 events How to prove $A\cap B \subseteq \overline{A \triangle B}$
+20 05:03 2 events Prove that $3^n>n^4$ if $n\geq8$
+15 16:04 accept Topological extension property
+10 19:44 upvote Using generating functions, Find a closed formula to next expression: $\sum_{k=0}^m{k(k+2)}$
+10 17:16 upvote Selecting objects arranged in a circle - Solution Only By Counting
+10 14:17 upvote About 0.999… = 1
+10 13:26 upvote Finding Upper And Lower Bounds
+10 10:08 upvote Is $R_K$ first countable?
+10 09:24 upvote Topological proof of Bolzano-Weierstrass
+10 05:05 upvote generalizing De Morgan's Laws
+10 05:05 upvote functions and infinite intersections
+10 05:05 upvote Does an arbitrary function preserve arbitrary intersections?
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