Any Subset of a Countable set is Countable | Discrete Mathematics | Learn with Sreyas

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In this video, we prove the statement "Any subset of a countable set is countable ".

Previous video - why set of real numbers is uncountable.
  1. Learn with Sreyas
  2. discrete maths
  3. mathematics
  4. countable
  5. uncountable
  6. any subset of a countable set is countable
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Комментарии
Автор

Awesome video. Thanks. I think you should’ve put {s_1, s_2} instead of (s_1 U s_2) though. I also think you should’ve noted that A is infinite around the 2 minute mark.

tannerhewison
Автор

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Anemine