--- a/doc-src/IsarImplementation/Thy/Integration.thy Fri Oct 08 17:41:51 2010 +0100
+++ b/doc-src/IsarImplementation/Thy/Integration.thy Fri Oct 08 18:05:35 2010 +0100
@@ -181,41 +181,6 @@
*}
-subsection {* Toplevel control *}
-
-text {*
- There are a few special control commands that modify the behavior
- the toplevel itself, and only make sense in interactive mode. Under
- normal circumstances, the user encounters these only implicitly as
- part of the protocol between the Isabelle/Isar system and a
- user-interface such as Proof~General.
-
- \begin{description}
-
- \item \isacommand{undo} follows the three-level hierarchy of empty
- toplevel vs.\ theory vs.\ proof: undo within a proof reverts to the
- previous proof context, undo after a proof reverts to the theory
- before the initial goal statement, undo of a theory command reverts
- to the previous theory value, undo of a theory header discontinues
- the current theory development and removes it from the theory
- database (\secref{sec:theory-database}).
-
- \item \isacommand{kill} aborts the current level of development:
- kill in a proof context reverts to the theory before the initial
- goal statement, kill in a theory context aborts the current theory
- development, removing it from the database.
-
- \item \isacommand{exit} drops out of the Isar toplevel into the
- underlying ML toplevel. The Isar toplevel state is preserved and
- may be continued later.
-
- \item \isacommand{quit} terminates the Isabelle/Isar process without
- saving.
-
- \end{description}
-*}
-
-
section {* Theory database \label{sec:theory-database} *}
text {*