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Proof that Open balls are Open sets

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Оценок: 258 | Просмотров: 27595
In this video we prove that open balls are open sets.
Категория: Образование
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Текстовые комментарии (19)
debendra gurung (1 месяц назад)
The Algebraic proof is sweet.
flnhr (7 месяцев назад)
Bobbi Star (1 год назад)
I had blind math analysis professor. This is great
ankur patil (1 год назад)
nice explanation with figures...
good explanations has give me confidence in functional analysis.
Tegan (1 год назад)
Amazing explanation
martin kioko (1 год назад)
you look cute,,where do you study
vinivinix (1 год назад)
But is a ball just a kind of set though? So an open ball obviously is an open set.
Samia Ben Mhenni (2 года назад)
thank you !
prasanna 17 (2 года назад)
great explanation....very useful..thank u sir
Hamisi Wenge (2 года назад)
great explanation vry helpful thanks much
John Q (3 года назад)
i can't believe this video has got only about 2k views. Such a great explanation! Greeting from Astana, Kazakhstan!
Rawiyah Alraddadi (3 года назад)
goofydog07 (3 года назад)
Even though you talk a bit like a rambler this is really helpful and clear thanks.
Pyan Amin (3 года назад)
awesome, thank you for such big help!
Marcus Fenix (3 года назад)
Very helpful thank you. Have you posted any videos showing that R^n is an open set?
Darrell McPhail (2 года назад)
Let x be any element of R^n. Then B(x, r) is contained in R^n (no matter what the value of r > 0 is.) Hence R^n is open.
Tyrone Dass (3 года назад)
what about Sobolev space any lecture on these
Ouqassou Souhayl (4 года назад)
Thank you for your videos sir, they are well explained, and please keep it on, you are really of a big help :)

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