Sat, 04 Mar 2023 12:05:51 +0100 wenzelm clarified signature: more uniform Progress.verbose, avoid adhoc "override def theory()";
Sat, 04 Mar 2023 11:45:14 +0100 wenzelm proper Output.writeln_text (with clean_yxml) for all instances of Progress.echo;
Fri, 03 Mar 2023 20:11:08 +0100 wenzelm merged
Fri, 03 Mar 2023 20:10:47 +0100 wenzelm more database content;
Fri, 03 Mar 2023 13:50:54 +0100 wenzelm tuned signature;
Fri, 03 Mar 2023 13:50:39 +0100 wenzelm tuned whitespace;
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