Sun, 02 Sep 2018 21:22:52 +0200 wenzelm clarified Thy_Resources.Session.use_theories: "terminated" node status is sufficient;
Sun, 02 Sep 2018 20:51:07 +0200 wenzelm tuned documentation;
Sun, 02 Sep 2018 20:47:38 +0200 wenzelm more detailed node_status;
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