Thu, 04 Feb 1999 18:13:10 +0100 wenzelm check_elem: allow ~, except for '~' and '~~';
Thu, 04 Feb 1999 18:12:26 +0100 wenzelm removed use.ML;
Thu, 04 Feb 1999 18:12:09 +0100 wenzelm removed General/use.ML;
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