# Math Help - real Analysis (measure)

1. ## real Analysis (measure)

Let (X,A) be a measurable space. Show that any constant fuction is measurable

2. Ohh come on. Try it yourself and we'll give you advice

3. I support mabruka's post.....

And if it can help you, a function f from X to Y is said to be (X,A)-(Y,B) measurable (where B is the sigma algebra associated to Y) if for any element O in B, $f^{-1}(O)\in A$