Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

[Merged by Bors] - chore(group_theory/submonoid): split into 3 files #3058

Closed
wants to merge 18 commits into from
Closed

[Merged by Bors] - chore(group_theory/submonoid): split into 3 files #3058

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
18 commits
Select commit Hold shift + click to select a range
16cd8d4
Move a file
urkud Jun 12, 2020
cc77b7d
Split into 2 files
urkud Jun 13, 2020
3c93aff
Restore `eq_mlocus`
urkud Jun 13, 2020
4eac671
Improve docstrings
urkud Jun 14, 2020
11fca3a
Apply suggestions from code review
urkud Jun 14, 2020
80c3b7d
Merge branch 'master' into submonoid-basic
urkud Jun 16, 2020
24c9964
Snapshot
urkud Jun 16, 2020
6fb59e1
Snapshot
urkud Jun 17, 2020
5e76f49
Merge branch 'master' into submonoid-basic
urkud Jun 23, 2020
172682a
Merge branch 'master' into submonoid-basic
urkud Jun 27, 2020
470ff03
Snapshot
urkud Jun 27, 2020
c61d33f
Docstring title
urkud Jun 27, 2020
e1fa719
Fix
urkud Jun 27, 2020
401545c
Fix
urkud Jun 27, 2020
3a3c99a
Fix
urkud Jun 27, 2020
c056216
Merge branch 'master' into submonoid-basic
urkud Jun 28, 2020
6f0814b
Apply suggestions from code review
urkud Jun 28, 2020
d3864c1
Fix docs
urkud Jun 28, 2020
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
4 changes: 2 additions & 2 deletions src/group_theory/subgroup.lean
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -817,8 +817,8 @@ open set

lemma gsmul_mem (H : add_subgroup A) {x : A} (hx : x ∈ H) :
∀ n : ℤ, gsmul n x ∈ H
| (int.of_nat n) := add_submonoid.smul_mem H.to_add_submonoid hx n
| -[1+ n] := H.neg_mem' $ H.add_mem hx $ add_submonoid.smul_mem H.to_add_submonoid hx n
| (int.of_nat n) := add_submonoid.nsmul_mem H.to_add_submonoid hx n
| -[1+ n] := H.neg_mem' $ H.add_mem hx $ add_submonoid.nsmul_mem H.to_add_submonoid hx n

lemma sub_mem (H : add_subgroup A) {x y : A} (hx : x ∈ H) (hy : y ∈ H) : x - y ∈ H :=
H.add_mem hx (H.neg_mem hy)
Expand Down