Misc improvements to `head` and `tail` functions for lists
- Define
head
as notation that prints (Coq defines it asparsing only
). - Declare
tail
assimpl nomatch
. - Add lemmas about
head
andtail
.
Edited by Robbert Krebbers
head
as notation that prints (Coq defines it as parsing only
).tail
as simpl nomatch
.head
and tail
.