Category "isabelle"

Instantiate type classes in locale contexts

Suppose I have some locale where a type-class can be inferred from the assumptions. locale some_locale = fixes xs :: "'x list" assumes xs_contains_UNIV: "se

The induction proof in Isabelle: given a subgoal, how to create the right auxiliary lemma

I have defined a labeled transition system, and the function which accpets the list that system could reach. For convinence, I defined another funtion used for