Sun, 17 Feb 2019 22:15:02 +0100 wenzelm clarified Node_Status vs. is_suppressed, e.g. relevant for purged nodes in Theories_Dockable after 0626cae56b6f;
Sun, 17 Feb 2019 19:31:04 +0100 wenzelm updated to polyml-test-8fda4fd22441;
Fri, 15 Feb 2019 18:24:22 +0000 haftmann proper installation of ancient procedure for preorders
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