--- a/src/HOL/IMP/Sem_Equiv.thy Sun Nov 02 18:21:14 2014 +0100 +++ b/src/HOL/IMP/Sem_Equiv.thy Sun Nov 02 18:21:45 2014 +0100 @@ -1,4 +1,4 @@ -header "Constant Folding" +section "Constant Folding" theory Sem_Equiv imports Big_Step