Thu, 04 Feb 1999 18:17:01 +0100 wenzelm Symbol.use (eliminated Use.exit_use);
Thu, 04 Feb 1999 18:16:22 +0100 wenzelm leave theory context after load_thy;
Thu, 04 Feb 1999 18:15:53 +0100 wenzelm File.pwd, File.cd;
Thu, 04 Feb 1999 18:15:20 +0100 wenzelm fixed file_info;
Thu, 04 Feb 1999 18:15:01 +0100 wenzelm use, cd;
Thu, 04 Feb 1999 18:14:40 +0100 wenzelm added 'use';
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