3. (8 marks) Let be the set of integers that are not divisible by 3. Prove that is a countable set by ﬁnding a bijection between the set and the set of integers , which we know is countable from cl...

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3. (8 marks) Let $\top$ be the set of integers that are not divisible by 3. Prove that $\top$ is a countable set by ﬁnding a bijection between the set $\top$ and the set of integers $\mathbb{Z}$ , which we know is countable from class. (You need to prove that your function is a bijection.)

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3. (8 marks) Let be the set of integers that are not divisible by 3. Prove that is a countable set by ﬁnding a bijection between the set and the set of integers , which we know is countable from cl...

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3. (8 marks) Let be the set of integers that are not divisible by 3. Prove that is a countable set by ﬁnding a bijection between the set and the set of integers , which we know is countable from cl...

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Add Answer to: 3. (8 marks) Let be the set of integers that are not divisible by 3. Prove that is a countable set by ﬁnding a bijection between the set and the set of integers , which we know is countable from cl...

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3. (8 marks) Let be the set of integers that are not divisible by 3. Prove that is a countable set by ﬁnding a bijection between the set and the set of integers , which we know is countable from cl...