updated to stack-2.13.1: include arm64-darwin, although it does not quite work yet (e.g. session "Haskell");
enforce rebuild of Isabelle/Pure and thus all Haskell applications;
(* Title: HOL/ex/Case_Product.thy
Author: Lars Noschinski
Copyright 2011 TU Muenchen
*)
section \<open>Examples for the 'case_product' attribute\<close>
theory Case_Product
imports Main
begin
text \<open>
The @{attribute case_product} attribute combines multiple case distinction
lemmas into a single case distinction lemma by building the product of all
these case distinctions.
\<close>
lemmas nat_list_exhaust = nat.exhaust [case_product list.exhaust]
text \<open>The attribute honours preconditions.\<close>
lemmas trancl_acc_cases = trancl.cases [case_product acc.cases]
text \<open>Also, case names are generated based on the old names.\<close>
end