1.1 --- a/src/HOL/Number_Theory/Number_Theory.thy	Sun Nov 02 18:21:14 2014 +0100
     1.2 +++ b/src/HOL/Number_Theory/Number_Theory.thy	Sun Nov 02 18:21:45 2014 +0100
     1.3 @@ -1,5 +1,5 @@
     1.4  
     1.5 -header {* Comprehensive number theory *}
     1.6 +section {* Comprehensive number theory *}
     1.7  
     1.8  theory Number_Theory
     1.9  imports Fib Residues Eratosthenes