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• March 26th, 2020, 21:12
I am reading Tej Bahadur Singh: Elements of Topology, CRC Press, 2013 ... ... and am currently focused on Chapter 1, Section 1.4: Basis ... ......
0 replies | 62 view(s)
• March 24th, 2020, 21:54
I am reading Tej Bahadur Singh: Elements of Topology, CRC Press, 2013 ... ... and am currently focused on Chapter 1, Section 1.4: Basis ... ... ...
0 replies | 74 view(s)
• March 24th, 2020, 21:36
Thanks GJA ... I appreciate your help ... Peter
2 replies | 106 view(s)
• March 24th, 2020, 08:51
Hi Peter, $\{a\}\cap\{a\} = \{a\}$ and $\{b\}\cap\{b\}=\{b\}$ are finite intersections of sets contained in $\mathcal{S}$ as well.
2 replies | 106 view(s)
• March 23rd, 2020, 03:05
In a recent post I wanted to use a capital tau ... and so typed \mathcal{ \Tau_1 } but generated an error ... Can someone please help ... ... ...
2 replies | 85 view(s)
• March 23rd, 2020, 02:51
I am reading Tej Bahadur Singh: Elements of Topology, CRC Press, 2013 ... ... and am currently focused on Chapter 1, Section 1.4: Basis ... ... ...
2 replies | 106 view(s)
• March 19th, 2020, 22:50
Thanks Oxide ... I really appreciate your help ... Peter
2 replies | 169 view(s)
• March 19th, 2020, 06:00
I am reading Tej Bahadur Singh: Elements of Topology, CRC Press, 2013 ... ... and am currently focused on Chapter 4, Section 4.1: Sequences ... ...
2 replies | 169 view(s)
• March 19th, 2020, 05:41
Hi GJA ... .. Thanks so much for the help ... Peter
2 replies | 150 view(s)
• March 18th, 2020, 23:39
Hi Peter, Let $S=\{x_{n}\}_{n=1}^{\infty}$ be a sequence in $\mathbb{R}\setminus\mathbb{Q}$; i.e., a sequence of irrational numbers. Then the...
2 replies | 150 view(s)
• March 18th, 2020, 22:20
I am reading Tej Bahadur Singh: Elements of Topology, CRC Press, 2013 ... ... and am currently focused on Chapter 4, Section 4.1: Sequences ... ...
2 replies | 150 view(s)
• March 18th, 2020, 22:04
Thanks Evgeny ... Your post turned out to be really helpful ... Appreciate your help ... Peter
2 replies | 140 view(s)
• March 15th, 2020, 02:15
I am reading Tej Bahadur Singh: Elements of Topology, CRC Press, 2013 ... ... and am currently focused on Chapter 1, Section 1.2: Topological ...
2 replies | 140 view(s)
• March 14th, 2020, 19:42
Thanks for the help, Opalg ... really appreciate it ... Just working through what you have written ... Thanks again ... Peter
2 replies | 91 view(s)
• March 14th, 2020, 10:49
The key to this lies in Theorem 1.3.5, which says that $x\in\overline{A} \Longleftrightarrow U\cap A\ne\emptyset$ for every (open) nbd of $x$. ...
2 replies | 91 view(s)
• March 14th, 2020, 10:01
This follows from the statement immediately before Proposition 1.3.2, where it says that $A$ is open if and only if $A = A^\circ$. Since $A^\circ$ is...
1 replies | 47 view(s)
• March 14th, 2020, 04:03
I am reading Tej Bahadur Singh: Elements of Topology, CRC Press, 2013 ... ... and am currently focused on Chapter 1, Section 1.2: Topological ...
1 replies | 47 view(s)
• March 13th, 2020, 23:08
I am reading Tej Bahadur Singh: Elements of Topology, CRC Press, 2013 ... ... and am currently focused on Chapter 1, Section 1.2: Topological Spaces...
2 replies | 91 view(s)
• March 10th, 2020, 22:58
Thanks HallsofIvy ... appreciate your help ... Peter
2 replies | 207 view(s)
• March 8th, 2020, 21:51
I am reading Sasho Kalajdzievski's book: "An Illustrated Introduction to Topology and Homotopy" and am currently focused on Chapter 3: Topological...
2 replies | 207 view(s)
• March 7th, 2020, 03:31
I am reading Wilson A. Sutherland's book: "Introduction to Metric & Topological Spaces" (Second Edition) ... I am currently focused on Chapter 8:...
0 replies | 112 view(s)
• March 6th, 2020, 08:37
Your calculation is correct, and the answer is not one of the listed options. Maybe you should check whether you read the question correctly.
3 replies | 582 view(s)
• March 2nd, 2020, 00:51
I am reading Kristopher Tapp's book: Matrix Groups for Undergraduates. I am currently focused on and studying Section 1 in Chapter2, namely: ...
0 replies | 272 view(s)
• March 1st, 2020, 00:19
Thanks for the help, Opalg ... Peter
2 replies | 456 view(s)
• March 1st, 2020, 00:14
I am reading Kristopher Tapp's book: Matrix Groups for Undergraduates. I am currently focused on and studying Section 1 in Chapter2, namely: ...
0 replies | 82 view(s)
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4 Visitor Messages

1. Thanks again for your help ... and indeed, your kind comment ...

Peter
2. Thanks so much for your help recently ... just letting you know that I really appreciate it ...

Peter
3. Hi GJA! Glad to see you at MHB!

You have mentioned me as your referrer. I am curious to know in what way did I help you to come here?
4. Hello and welcome to MHB, GJA!
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