Theorem ZFSet.mem_union

Modification history

2023-05-07 05:02
Mathlib/SetTheory/ZFC/Basic.lean
chore: bye-bye, solo `by`s! (#3825) …
Modified ZFSet.mem_unionView on Github →
2023-04-06 22:39
Mathlib/SetTheory/Zfc/Basic.lean
feat: port SetTheory.ZFC.Basic (#3165) …
Added ZFSet.mem_unionView on Github →