src/HOL/Auth/All_Symmetric.thy
author wenzelm
Tue, 03 Jan 2023 17:21:24 +0100
changeset 76887 d8cdddf7b9a5
parent 62145 5b946c81dfbf
permissions -rw-r--r--
avoid somewhat fragile Document.Node.Name.master_dir_path;

theory All_Symmetric
imports Message
begin

text \<open>All keys are symmetric\<close>

overloading all_symmetric \<equiv> all_symmetric
begin
  definition "all_symmetric \<equiv> True"
end

lemma isSym_keys: "K \<in> symKeys"
  by (simp add: symKeys_def all_symmetric_def invKey_symmetric) 

end