Question
Check whether the set of integers is countable or not.
Answer :
Word Count : 188
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Skip in 10
The set of integers ( \mathbb{Z} = { \dots, -3, -2, -1, 0, 1, 2, 3, \dots } ) can be shown to be countable by explicitly constructing a one-to-one correspondence (bijection) with the set of natural numbers ( \mathbb{N} = { 1, 2, 3, \dots } ). We define a mapping ( f: \mathbb{Z}
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