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• February 17th, 2020, 00:54
Hi Peter, Happy to help! I wasn't quoting that purposely, though it is true. In fact, it's essentially what the author is proving by their...
3 replies | 154 view(s)
• February 16th, 2020, 22:50
Thanks for the help GJA! At first I struggled with what you meant by ... " By the continuity argument, $f(x)<0$ for all such $x$ ... " But then...
3 replies | 154 view(s)
• February 15th, 2020, 10:07
Hi Peter, Since $\beta<b$ and $\delta >0$, there are values of $x$ such that $|x-\beta|<\delta$ and $\beta < x< b$. The key here is to remember...
3 replies | 154 view(s)
• February 15th, 2020, 04:25
I am reading Cesar E. Silva's book entitled "Invitation to Real Analysis" ... and am focused on Chapter 4: Continuous Functions ... I need help...
3 replies | 154 view(s)
• February 1st, 2020, 19:07
Thanks MountEvariste for an informative and really helpful reply ... Now working through what you have written ... Thanks again ... Peter
2 replies | 271 view(s)
• February 1st, 2020, 03:14
I am reading Andrew Browder's book: "Mathematical Analysis: An Introduction" ... ... I am currently reading Chapter 3: Continuous Functions on...
2 replies | 271 view(s)
• January 27th, 2020, 00:44
After a little reflection I have realized that f is continuous at any point x if and only if f(x-) = f(x+) ... so if f is discontinuous at d then...
1 replies | 252 view(s)
• January 27th, 2020, 00:04
I am reading Andrew Browder's book: "Mathematical Analysis: An Introduction" ... ... I am currently reading Chapter 3: Continuous Functions on...
1 replies | 252 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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