Commit 2024-04-30 14:24 a7ed535a
View on Github →feat(Complex/UpperHalfPlane): add vertical strips (#12443) We define the vertical strips that are needed for proving Eisenstein series are modular forms #10377 . We also add the definition of sqrt{-1} as an elements of the upper half plane. Note that this is no longer needed for the modular forms PRs but its good to have. Sorry about the typo in the PR name, its not my day!