src/HOL/Datatype_Examples/Derivation_Trees/Prelim.thy
changeset 58889 5b7a9633cfa8
parent 58309 a09ec6daaa19
child 62390 842917225d56
     1.1 --- a/src/HOL/Datatype_Examples/Derivation_Trees/Prelim.thy	Sun Nov 02 18:21:14 2014 +0100
     1.2 +++ b/src/HOL/Datatype_Examples/Derivation_Trees/Prelim.thy	Sun Nov 02 18:21:45 2014 +0100
     1.3 @@ -5,7 +5,7 @@
     1.4  Preliminaries.
     1.5  *)
     1.6  
     1.7 -header {* Preliminaries *}
     1.8 +section {* Preliminaries *}
     1.9  
    1.10  theory Prelim
    1.11  imports "~~/src/HOL/Library/FSet"