lean4-htt

Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.

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Leonardo de Moura bf15bd36c1 fix(library/compiler): join point arity confusion We must make sure we do not accidentally change the arity of a join point. The arity is the number of nested lambda expressions. For example, suppose we have ``` let jp := fun (x : unit), t ``` where `jp` is a join point of arity 1, i.e., `t` is not a lambda. All "jumps" will be of the form: `jp ()`. Now, suppose we simplify `t` and it becomes a lambda `fun (y : nat), y`. We should to represent `jp` as ``` let jp := fun (x : unit) (y : nat), y ``` Because we would be changing `jp`'s arity. We have the same problem with `cases_on` applications in LCNF. So, we fix the problem using the same approach: an auxiliary `let`-declaration. The simplified join point above is encoded as ``` let jp := fun (x : unit), let _z := fun (y : nat), y in _z ``` cc @kha This is the bug that I mentioned on slack :)		2018-10-20 18:18:41 -07:00
.github	chore(.github/CONTRIBUTING): fix typos and URLs	2017-10-30 16:23:22 +01:00
bin	chore(bin/lean-gdb): exclude scalar fields	2018-10-04 18:32:03 -07:00
doc	doc(doc/coding_style,doc/commit_convention): fix git hook commands	2018-07-05 10:20:25 +02:00
gen	fix(runtime/apply): must use `free_heap_obj` instead of `free`	2018-08-28 12:29:14 -07:00
images	chore(CMakeLists.txt): move Lean logo to make sure we can test leanemacs without installing Lean	2015-01-31 17:38:49 -08:00
lean4-mode	feat(lean4-mode/lean4-flycheck): store .olean of dependencies	2018-09-11 16:35:25 -07:00
library	feat(library/init/data): annotate rbtree and rbmap functions	2018-10-19 14:57:31 -07:00
script	chore(script/lib_perf): adapt to change in `lean` command line behavior	2018-09-27 13:11:42 -07:00
src	fix(library/compiler): join point arity confusion	2018-10-20 18:18:41 -07:00
tests	fix(tests/lean/parsec1): fix test	2018-10-19 09:52:01 +02:00
.appveyor.yml	chore(.appveyor,.travis): disable leanpkg registry tests	2018-04-12 18:32:20 +02:00
.clang-format	feat(library/vm/process): add basic process support	2017-03-28 18:08:06 -07:00
.codecov.yml	fix(.codecov.yml): do not fail github ci if coverage drops by 0.01%	2017-06-25 10:35:02 +02:00
.gitattributes	chore(.gitattributes): use `union` merge strategy for doc/changes.md	2017-12-11 12:49:10 +01:00
.gitignore	feat(library,src/CMakeLists): use simple Makefile by Simon Hudon to bring back some degree of parallel compilation	2018-10-19 09:52:01 +02:00
.travis.yml	chore(.travis.yml): trigger AppVeyor nightly build from Travis	2018-04-13 16:44:27 +02:00
LICENSE
README.md	chore(README): point CI links to lean4 branch	2018-04-12 13:50:42 +02:00