Mathlib v3 is deprecated. Go to Mathlib v4

Theorem equiv.set.union_symm_apply_left

Modification history

2021-10-06 15:46
src/data/equiv/basic.lean
refactor(data/equiv): split out `./set` from `./basic` (#9560) …
Modified equiv.set.union_symm_apply_leftView on Github →
2020-10-16 00:56
src/data/equiv/basic.lean
feat(data/equiv/basic): add `equiv.set.compl` (#4630) …
Added equiv.set.union_symm_apply_leftView on Github →