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OpenStudy (anonymous):
Is an empty set a function or not? Why or why not? I need a very simple explanation, please. Thanks.
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OpenStudy (anonymous):
IS THERE A MANY-TO-MANY RELATION? Example please.
OpenStudy (anonymous):
Generally a function is not an empty set, for example y=x is a set that contain all the real numbers and there ia a many to many relation: y=2 => x=2 there is one solution to one value of x and so on
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