src/Doc/System/Presentation.thy
2013-03-13 wenzelm 2013-03-13 sessions may be organized via 'chapter' in ROOT;
2013-01-26 wenzelm 2013-01-26 tuned;
2012-08-28 wenzelm 2012-08-28 renamed doc-src to src/Doc; renamed TutorialI to Tutorial;