greg/NNG
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

typo in L08ne.lean

Browse Source
This commit is contained in:
Yannick Seurin
2024-06-11 10:35:14 +02:00
committed by GitHub
parent 49dcef91bc
commit fbf69505fb
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
Game/Levels/Implication/L08ne.lean
View File

@@ -39,7 +39,7 @@ valid is that if `P` is a true-false statement then `P → False`
is the logical opposite of `P`. Indeed `True → False` is false,
and `False → False` is true!
The upshot of this is that use can treat `a ≠ b` in exactly
The upshot of this is that you can treat `a ≠ b` in exactly
the same way as you treat any implication `P → Q`. For example,
if your *goal* is of the form `a ≠ b` then you can make progress
with `intro h`, and if you have a hypothesis `h` of the