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A function 'f' from a set X toY is called onto if very yinY , EE x in Xsuch that f(x) =y . Unless the contrary is specified a real function is onto if it takes all real values ,Othervise ,it is called o into function , Thus , if X and Y are finite sets , then 'f' can not be onto if Y contains more elements then 'x' Now answer the following Which of the following is not true |
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Answer» A one-one function from theset {a, B, C} to `{ alpha, beta, gamma}` is onto also |
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