Commit graph

7 commits

Author SHA1 Message Date
Floris van Doorn
8c7fdd3708 style(library): rename set_category to discrete_category 2014-11-08 19:12:54 -08:00
Floris van Doorn
d8a616fa70 refactor(library): major changes in the library
I made some major changes in the library. I wanted to wait with pushing
until I had finished the formalization of the slice functor, but for
some reason that is very hard to formalize, requiring a lot of casts and
manipulation of casts. So I've not finished that yet.

Changes:

- in multiple files make more use of variables

- move dependent congr_arg theorems to logic.cast and proof them using heq (which doesn't involve nested inductions and fewer casts).

- prove some more theorems involving heq, e.g. hcongr_arg3 (which do not
  require piext)

- in theorems where casts are used in the statement use eq.rec_on
  instead of eq.drec_on

- in category split basic into basic, functor and natural_transformation

- change the definition of functor to use fully bundled
categories. @avigad: this means that the file semisimplicial.lean will
also need changes (but I'm quite sure nothing major).  You want to
define the fully bundled category Delta, and use only fully bundled
categories (type and ᵒᵖ are notations for the fully bundled
Type_category and Opposite if you open namespace category.ops). If you
want I can make the changes.

- lots of minor changes
2014-11-03 18:45:12 -08:00
Leonardo de Moura
a26618e0f2 feat(frontends/lean): add '[]' notation for marking arguments where class-instance resolution should be applied 2014-10-12 13:06:00 -07:00
Floris van Doorn
c630b5ddb2 feat(library/algebra/category): use variables instead of parameters 2014-10-11 16:40:18 -07:00
Leonardo de Moura
8c5d3392c7 fix(library/algebra/category): minor fixes to reflect recent changes, and fix tests 2014-10-08 23:44:09 -07:00
Floris van Doorn
0a58e3d1ae feat(algebra/category/): minor additions, start on adjunction 2014-10-08 23:14:44 -07:00
Floris van Doorn
8d376b93cd feat(category): split category.lean in different files; add more constructions and theorems about isos 2014-10-08 23:14:44 -07:00