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Theorem Set.mem_insert_of_mem

Modification history

2022-07-21 01:28
src/set_theory/zfc/basic.lean
feat(set_theory/zfc/basic): `Set.mem_insert → Set.mem_insert_iff`, add `Set.mem_insert` and `Set.mem_insert_of_mem` (#15573) …
Added Set.mem_insert_of_memView on Github →