Sun, 02 Sep 2018 19:48:15 +0200 clarified reset_notepad;
wenzelm [Sun, 02 Sep 2018 19:48:15 +0200] rev 68878
clarified reset_notepad;
Sun, 02 Sep 2018 14:56:26 +0200 more robust reset_state: begin/end structure takes precedence over goal/proof structure;
wenzelm [Sun, 02 Sep 2018 14:56:26 +0200] rev 68877
more robust reset_state: begin/end structure takes precedence over goal/proof structure;
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