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Outdated suggestions cannot be applied.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.
The proof of Plancharel's theorem is done, except for one theorem about convolutions that is missing from mathlib (which I didn't notice earlier) and a silly norm-cast lemma that I couldn't figure out.
Unfortunately, I couldn't prove that L^1 intersected L^2 is a normed space. I don't understand why, but nothing I tried worked in instance : NormedSpace. This also means that I couldn't even state the following lemmas (The inclusion is DenseInducing, etc.) without throwing errors.
I also updated the .tex file, so that the online version should have all the links and the dependency graph should display the progress correctly. (I did not test this, apart from making sure the LaTeX compiles.)