I am a beginner in Riemann Integration. Can someone please help me do the following problem?
Let $P$ be the Cantor Set(the most general one i.e. removing the middle $\frac{1}{3}$rd portion in each of the infinite iterations). Let $f$ be a bounded real function on $[0,1]$ which is continuous at every point outside $P$ . Prove that $f$ is Riemann integrable on$[0,1]$