feat: Simprocs for the Working Mathematician #97
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Co-authored-by: Yaël Dillies <[email protected]>
kbuzzard
reviewed
Apr 19, 2025
posts/fantastic-simprocs.md
Outdated
| link: '' | ||
| slug: fantastic-simprocs | ||
| tags: 'simp, simproc, meta' | ||
| title: Fantastic Simprocs and Where to Find Them. |
There was a problem hiding this comment.
I know it's a joke but this PR does not give any indication about where to find simprocs so in my mind the title is not a good fit: it's basically completely inaccurate. If you want to make the joke then perhaps the time to make it is in the follow-up post where you could call it Fantastic Simprocs and how to write them or something.
posts/fantastic-simprocs.md
Outdated
| -- Works since `simp` can simplify `P ∨ ¬ P` to `True`. | ||
| simp only [↓reduceIte] | ||
|
|
||
| open Classical |
There was a problem hiding this comment.
We can remove it once you are done proving FermatLastTheorem 😉
b-mehta
reviewed
May 5, 2025
posts/fantastic-simprocs.md
Outdated
| @@ -118,6 +118,10 @@ The [`Nat.reduceDvd`](https://leanprover-community.github.io/mathlib4_docs/find/ | |||
| example : 3 ∣ 9 := by | |||
| simp only [Nat.reduceDvd] | |||
|
|
|||
| -- `decide` cannot close this goal. | |||
| example (f : Prop → Prop) : f (2 ∣ 4) = f True := by | |||
eric-wieser
reviewed
May 6, 2025
Paul-Lez
changed the title
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This PR adds the first blog post in a series of three to introduce the concept of simprocs and explain how to write them.
The second blog post can be found here: #98
Co-authored-by : Yaël Dillies [email protected]
Feedback about the content and corrections are very welcome!