| changeset 58889 | 5b7a9633cfa8 |
| parent 58834 | 773b378d9313 |
| child 60533 | 1e7ccd864b62 |
--- a/src/HOL/Decision_Procs/Commutative_Ring.thy Sun Nov 02 18:21:14 2014 +0100 +++ b/src/HOL/Decision_Procs/Commutative_Ring.thy Sun Nov 02 18:21:45 2014 +0100 @@ -3,7 +3,7 @@ Proving equalities in commutative rings done "right" in Isabelle/HOL. *) -header {* Proving equalities in commutative rings *} +section {* Proving equalities in commutative rings *} theory Commutative_Ring imports Main