Theorem Rel.preimage_id

Modification history

2025-08-13 00:55
Mathlib/Data/Rel.lean
refactor: rename `Rel` to `SetRel`, restore the old `Rel` (#27447) …
Deleted Rel.preimage_idView on Github →
2025-07-06 13:16
Mathlib/Data/Rel.lean
refactor: make `Rel` less see-through (#25587) …
Modified Rel.preimage_idView on Github →
2022-12-22 20:13
Mathlib/Data/Rel.lean
feat: port Data.Rel (#1134)
Added Rel.preimage_idView on Github →