Where can I find more complicated examples of using Hoare logic to verify programs in Isabelle/HOL?
I recently learned about this aspect of using Hoare logic for program verification in Isabelle/HOL. I found that the examples in this tutorial are simple examples (http://www.inf.ed.ac.uk/teaching/courses/ar/HoareLogicLecture.thy). Where can I find more complicated examples of using Hoare logic to verify programs in Isabelle/HOL?