Sets is Countable or Uncountable Assignment | Assignment Help Services
September 13th, 2019
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Determine whether each of these sets is countable or uncountable. For those that are countably infinite,
exhibit a one-to-one correspondence between the set of positive integers and that set.
- integers not divisible by 3
- integers divisible by 5 but not by 7
- the real numbers with decimal representations consisting of all 1s
- the real numbers with decimal representations of all 1s or 9s