mathlib4
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feat(NumberTheory): characterize elliptic divisibility sequences
Main results:
-
Every
normEDSis an elliptic divisibility sequence (EDS). The key proof isrel₄_of_anti_oddRec_evenRec, based on my original argument first published on MathSE -
Conversely, every EDS is equal to some
normEDS(assuming that the first two terms are not zero divisors)
Some more results are to be added be for I mark this awaiting-review.
- [ ] depends on: #10843
This PR/issue depends on:
- leanprover-community/mathlib4#13155
- ~~leanprover-community/mathlib4#13153~~
- ~~leanprover-community/mathlib4#10843~~ By Dependent Issues (🤖). Happy coding!
I think this is a massive PR, especially because it's a long argument. Can you try to split it to smaller self-contained chunks, so it's easier to review?