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Mathematics 12 Online
OpenStudy (anonymous):

Is an empty set a function or not? Why or why not? I need a very simple explanation, please. Thanks.

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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