Sat, 13 Jan 2018 11:59:42 +0100 clarified formal comments;
wenzelm [Sat, 13 Jan 2018 11:59:42 +0100] rev 67415
clarified formal comments;
Sat, 13 Jan 2018 11:42:30 +0100 prefer formal comments;
wenzelm [Sat, 13 Jan 2018 11:42:30 +0100] rev 67414
prefer formal comments;
Sat, 13 Jan 2018 11:22:46 +0100 added \<^cancel> operator for unused text;
wenzelm [Sat, 13 Jan 2018 11:22:46 +0100] rev 67413
added \<^cancel> operator for unused text;
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