src/HOL/Typedef.thy
changeset 60758 d8d85a8172b5
parent 58889 5b7a9633cfa8
child 61102 0ec9fd8d8119
     1.1 --- a/src/HOL/Typedef.thy	Sat Jul 18 21:44:18 2015 +0200
     1.2 +++ b/src/HOL/Typedef.thy	Sat Jul 18 22:58:50 2015 +0200
     1.3 @@ -2,7 +2,7 @@
     1.4      Author:     Markus Wenzel, TU Munich
     1.5  *)
     1.6  
     1.7 -section {* HOL type definitions *}
     1.8 +section \<open>HOL type definitions\<close>
     1.9  
    1.10  theory Typedef
    1.11  imports Set
    1.12 @@ -14,7 +14,7 @@
    1.13    assumes Rep: "Rep x \<in> A"
    1.14      and Rep_inverse: "Abs (Rep x) = x"
    1.15      and Abs_inverse: "y \<in> A ==> Rep (Abs y) = y"
    1.16 -  -- {* This will be axiomatized for each typedef! *}
    1.17 +  -- \<open>This will be axiomatized for each typedef!\<close>
    1.18  begin
    1.19  
    1.20  lemma Rep_inject: