meta user
network profile
| bio | website | |
|---|---|---|
| location | ||
| age | ||
| visits | member for | 4 months |
| seen | May 17 at 11:12 | |
| stats | profile views | 7 |
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May 17 |
awarded | Supporter |
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Feb 17 |
awarded | Commentator |
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Feb 17 |
comment |
Question on “Proving $f(x) = 0$ everywhere” Thank you very much Dominic Michaelis! Yes, of course! I stepped away. |
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Feb 17 |
accepted | Question on “Proving $f(x) = 0$ everywhere” |
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Feb 17 |
comment |
Question on “Proving $f(x) = 0$ everywhere” Thank you very much again. You proved $A = B$ by contradiction, which I understand. But what's the intuition for $A = B$? How did you suspect this to be true? Surely, you must've suspected it proving it? |
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Feb 17 |
comment |
Question on “Proving $f(x) = 0$ everywhere” @Dominic.Michaelis: Great! Thanks. My last follow-up is: $\large{\text{Question 5:}}$ How do we know $f(a - d) = f(a + d$? The function $f(x)$ doesn't have to be symmetric about $x = a$? |
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Feb 17 |
comment |
Question on “Proving $f(x) = 0$ everywhere” @Dominic.Michaelis: Thank you very much. $\Large{\text{Question 3}}$: Do you mean $A$ is bounded in this question, but $A$ doesn't have to be bounded in general? I'm just a bit confused since you wrote "$A$" is bounded but not necessarily bounded"? $\Large{\text{Question 5}}$: How do we know $A = B$? |
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Feb 17 |
comment |
Question on “Proving $f(x) = 0$ everywhere” Thank you. Some follow-ups: $\Large{\text{Question 1}}$ : What does “Mh mean”? $\Large{\text{Question 3}}$: Are you using this result: “f is continuous iff if the inverse image of every closed set is a closed set”? Is there something easier? $\Large{\text{Question 4}}$: Isn’t A closed and bounded? $A := {x \in [0,1] : … }$ $\Large{\text{Question 5}}$: Sorry, still don’t see this. How does $$ A \leq C \text{ and } B \leq C \text{ and } C = \frac{1}{2}(A + B) $$ imply $ A = B = C$? |
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Feb 17 |
comment |
Question on “Proving $f(x) = 0$ everywhere” Sorry, what did you mean by "did a left another question open?" Thank you for your help so far. |
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Feb 17 |
asked | Question on “Proving $f(x) = 0$ everywhere” |
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Jan 22 |
accepted | Difference between Kernel for Linear Maps and Group Homomorphisms |
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Jan 2 |
revised |
Difference between Kernel for Linear Maps and Group Homomorphisms I added an example to show my confusion. I also cut down on repetitive things. |
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Jan 2 |
revised |
Difference between Kernel for Linear Maps and Group Homomorphisms I added an example to show my confusion. |
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Jan 1 |
asked | Difference between Kernel for Linear Maps and Group Homomorphisms |
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Dec 30 |
awarded | Editor |
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Dec 30 |
revised |
S4/V4 isomorphic to S3 - Understanding Attached Tables edited body; edited title |
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Dec 29 |
asked | S4/V4 isomorphic to S3 - Understanding Attached Tables |
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Dec 29 |
comment |
Quotient Group G/G = {identity}? Thank you. I'll spend some time looking over this. |
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Dec 29 |
awarded | Scholar |
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Dec 29 |
accepted | Quotient Group G/G = {identity}? |
