src/HOL/Cardinals/Ordinal_Arithmetic.thy
changeset 58889 5b7a9633cfa8
parent 58127 b7cab82f488e
child 61068 6cb92c2a5ece
     1.1 --- a/src/HOL/Cardinals/Ordinal_Arithmetic.thy	Sun Nov 02 18:21:14 2014 +0100
     1.2 +++ b/src/HOL/Cardinals/Ordinal_Arithmetic.thy	Sun Nov 02 18:21:45 2014 +0100
     1.3 @@ -5,7 +5,7 @@
     1.4  Ordinal arithmetic.
     1.5  *)
     1.6  
     1.7 -header {* Ordinal Arithmetic *}
     1.8 +section {* Ordinal Arithmetic *}
     1.9  
    1.10  theory Ordinal_Arithmetic
    1.11  imports Wellorder_Constructions