Correction to some problems in chapter 5

Problem 5.5.13: Assume that the function f is measurable

Problem 5.6.6: Assume that f is integrable.

Problem 5.6.7: Assume that f is measurable

Problem 5.6.8: Funksjonen h er definert p? X og ikke p? R.

These corrections have been corrected in the version of the textbook that is now online.