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What is positive integer and positive number |
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Answer» NN : For the set of NATURAL numbers. Z+Z+ : For the set if all positive integers. In my sense, both the sets contain {1,2,3,…}{1,2,3,…}Then, why are they considered different? I searched a little on this TOPIC and got this, but it doesn't tell ANYTHING about significance of TWO different sets. |
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