#1016 (Sep 24, 2019, 12:50:09 AM)

1. merged (detail / hgweb)
2. Enforced precodition "n <= length xs" to avoid relying on "hd []". (detail / hgweb)
3. Generalisation of many theorems to a more abstract type class (suggested by Mr Anonymous) (detail / hgweb)
4. tuned (detail / hgweb)
5. added lemma (detail / hgweb)

Started by an SCM change

This run spent:

• 6.3 sec waiting;
• 1 hr 22 min build duration;
• 1 hr 22 min total from scheduled to completion.