#473 (Sep 27, 2016, 7:10:23 PM)

1. syntactic type class for operation mod named after mod;
   simplified assumptions of type class semiring_div (detail / hgweb)
2. dropped tautological pattern (detail / hgweb)
3. more warning comments (detail / hgweb)
4. more lemmas (detail / hgweb)
5. spelling (detail / hgweb)

Started by an SCM change

This run spent:

• 5 min 2 sec waiting;
• 1 hr 34 min build duration;
• 1 hr 39 min total from scheduled to completion.