Sat, 13 Jun 2015 17:14:05 +0200 implicit rule for method "cases";
wenzelm [Sat, 13 Jun 2015 17:14:05 +0200] rev 60455
implicit rule for method "cases";
Sat, 13 Jun 2015 16:35:27 +0200 eliminated slightly odd Element.close_form: toplevel specifications have different policies than proof text elements;
wenzelm [Sat, 13 Jun 2015 16:35:27 +0200] rev 60454
eliminated slightly odd Element.close_form: toplevel specifications have different policies than proof text elements;
Sat, 13 Jun 2015 15:51:19 +0200 clarified 'obtain', using structured 'have' statement;
wenzelm [Sat, 13 Jun 2015 15:51:19 +0200] rev 60453
clarified 'obtain', using structured 'have' statement;
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