src/HOL/Auth/All_Symmetric.thy

try to avoid races again (cf. 8c37cb84065f and fd3a36e48b09);

theory All_Symmetric
imports Message
begin

text {* All keys are symmetric *}

defs all_symmetric_def: "all_symmetric \<equiv> True"

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

end