Question

let f: from R to R and one to one,A and B are subsets of R. Prove f(A intersection B)=f(A) intersection f(B)

Answer 1

@ganeshie8

Answer 2

@Directrix

Answer 3

This is an interesting question. I understand it but find it difficult to rigorously prove it....

Answer 4

I will medal someone who will teach me the underlying logic behind the proof..