0 votes 0 votes Suppose that $g$ is a function from $A$ to $B$ and $f$ is a function from $B$ to $C$. Show that if both $f$ and $g$ are one-to-one functions,then $fog$ is also one-to-one. Show that if both $f$ and $g$ are onto functions, then $fog$ is also onto. Set Theory & Algebra kenneth-rosen discrete-mathematics set-theory&algebra + – Pooja Khatri asked Apr 9, 2019 Pooja Khatri 160 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.