Pick out a function which is one - one but not onto
Answer»
Let `A={a,B,C},B={2,4}`. Define `f:ATOB" as "f(a)=4,f(b)=2,f(c)=2`. Let `A={a,b,c},B={2,4,6,8}`. Define `f:AtoB" as "f(a)=8,f(b)=2,f(c)=4`. Let `A={a,b,c},B=(2,4,6}`. Define `f:AtoB" as "f(a)=2,f(b)=4,f(c)=6` Let `A={a,b,c},B={2,4,6,8}`. Define `f:AtoB" as "f(a)=2,f(b)=2,f(c)=2`.