dan/HITs-Examples
1
0
Fork 0
mirror of https://github.com/nmvdw/HITs-Examples synced 2025-11-02 22:53:51 +01:00
Code Issues Releases Wiki Activity

Clarified proof of notIn_ext_union_singleton

Browse Source
This commit is contained in:
Niels van der Weide
2017-10-11 17:45:37 +02:00
parent 91899aef6f
commit c6f756a856
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
FiniteSets/subobjects/b_finite.v
View File

@@ -411,7 +411,7 @@ Section kfin_bfin.
destruct (dec (a = b)) as [Hb | Hb]; cbn.
* refine (Empty_rec _).
rewrite Hb in Ha.
contradiction.
apply (HYb Ha).
* reflexivity.
* destruct (dec (b = b)) ; [ reflexivity | contradiction ].
Defined.