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/sci/ - Science & Math

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>> No.10202895 [View]
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10202895

>>10202879
>intro to Lebesgue
Good joke my fellow math PhD.

>> No.10177525 [View]
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10177525

>>10176300
>bachelors in CS who faps to twitch thots

>> No.10155311 [View]
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10155311

>pick up a maths book in the library
>there are some shitty pencil annotations and problem solutions
>they stop at page fifty

>> No.10118071 [View]
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10118071

>>10118036
>need to show 3 times
Man I ought to get back into literature.
Anyhow, I completely forgot to say that you can just write:
Let D be a set. Let B be the set of points x such that every open ball around x contains some point in D. Let C be the set of points y such that every open ball around y contains some point of B. Assume that there is some y that is not an element of B. This is false, since if an open ball contains x, it also contains some open ball around x. Therefore C=B and we're done.

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