This is a question from Stromberg related to Steinhaus' Theorem:
If $A$ is a set of positive Lebesgue measure, show that $A + A$ contains an interval.
I can't quite see how to modify the Steinhaus proof though.
This is a question from Stromberg related to Steinhaus' Theorem:
If $A$ is a set of positive Lebesgue measure, show that $A + A$ contains an interval.
I can't quite see how to modify the Steinhaus proof though.