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May 23, 2015

Homework Help: math

Posted by tayloir on Sunday, May 6, 2007 at 2:20pm.

I do not undeerstand this question for homework.

Determine if the set is closed for the given operation.

1. yes or no- The set of positive fractions for division.

2. yes or no=The set of positive integers for subtraction.

Can someone help me?

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