Wed, 17 Nov 2021 15:23:15 +0100 wenzelm present only selected session theories (as in Isabelle2021), in contrast to 2bc24136bdeb, eb89b3a37826;
Wed, 17 Nov 2021 13:11:58 +0100 wenzelm tuned;
Wed, 17 Nov 2021 12:55:02 +0100 wenzelm clarified modules;
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