Theorem Sym2.congr_left

Modification history

2023-12-27 05:26
Mathlib/Data/Sym/Sym2.lean
refactor: remove `Sym2`'s global `Prod` setoid instance, use `s(x, y)` notation for unordered pairs (#8729) …
Modified Sym2.congr_leftView on Github →
2023-05-07 05:02
Mathlib/Data/Sym/Sym2.lean
chore: bye-bye, solo `by`s! (#3825) …
Modified Sym2.congr_leftView on Github →
2023-01-27 10:07
Mathlib/Data/Sym/Sym2.lean
feat: Port `Data.Sym.Sym2` (#1805)
Added Sym2.congr_leftView on Github →