Wed, 04 Sep 2019 20:05:57 +0200 wenzelm tuned messages;
Wed, 04 Sep 2019 11:21:07 +0200 wenzelm tuned signature;
Tue, 03 Sep 2019 19:20:22 +0200 wenzelm clarified signature;
Tue, 03 Sep 2019 15:55:27 +0200 wenzelm tuned important special case;
Tue, 03 Sep 2019 15:24:04 +0200 wenzelm tuned signature;
Tue, 03 Sep 2019 14:58:29 +0200 wenzelm more dump_checkpoints;
Tue, 03 Sep 2019 14:56:43 +0200 wenzelm clarified signature;
Tue, 03 Sep 2019 11:32:29 +0200 wenzelm clarified state variable: avoid extra mutability via Promise;
Wed, 04 Sep 2019 16:34:45 +0100 paulson Removal of the redundant ancestor Continuous_Extension
Wed, 04 Sep 2019 15:27:04 +0100 paulson Half of Brouwer_Fixpoint split off to form a separate theory: Retracts.
Wed, 04 Sep 2019 14:16:27 +0100 paulson Theory Derivative no longer depends on Path_Connected
Mon, 02 Sep 2019 19:44:12 +0200 wenzelm more explicit type Dump.Session, with context information;
Mon, 02 Sep 2019 16:28:09 +0200 wenzelm proper orientation;
Mon, 02 Sep 2019 11:46:27 +0200 wenzelm clarified signature: prefer operations without position;
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