PROOF OF THE FACT: EVERY INFINITE SET HAS A COUNTABLY INFINITE SUBSET.

In this video, the FACT that every infinite set has a countable infinite subset is stated. To understand this fact, definitions of an empty set, a set having n elements, finite set, a countably infinite set are explained with examples. Also, how the negation of a finite set helps to understand infinite set is explained. The proof of this fact is given in this video. Happy learning through viewing!
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