Tue, 19 Mar 2019 16:14:51 +0000 paulson new material about topology, etc.; also fixes for yesterday's
Mon, 18 Mar 2019 21:50:51 +0100 wenzelm merged
Mon, 18 Mar 2019 21:06:26 +0100 wenzelm support unicode_symbols in input source;
Mon, 18 Mar 2019 21:05:34 +0100 wenzelm tuned signature;
Mon, 18 Mar 2019 15:35:34 +0000 paulson new material;' strengthened material; moved proofs out of Function_Topology in order to lessen its dependencies
Sun, 17 Mar 2019 21:26:42 +0100 wenzelm tuned signature;
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