Mon, 09 Nov 1998 15:33:48 +0100 wenzelm The Isabelle/Isar toplevel.
Mon, 09 Nov 1998 15:33:32 +0100 wenzelm Histories of proof states, with undo / redo and prev / back.
Mon, 09 Nov 1998 15:33:12 +0100 wenzelm Generic parsers for Isabelle/Isar outer syntax.
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