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Let A=B={1,2,3}A = B = \{ 1,2,3 \} , and Consider the Function

Question 12

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Let A=B={1,2,3}A = B = \{ 1,2,3 \} , and consider the function f:A→Bf : A \rightarrow B defined as follows: f(1)=3f ( 1 ) = 3 , f(2)=1,f(3)=3f ( 2 ) = 1 , f ( 3 ) = 3 . Is ff onto? Why or why not?

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f is not onto because there is...

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