Mathlib v3 is deprecated. Go to Mathlib v4

Theorem set.nontrivial_of_mem_mem_ne

Modification history

2022-08-16 13:24
src/data/set/basic.lean
feat(data/set/basic): Add `set.nontrivial` predicate and API (#15867) …
Added set.nontrivial_of_mem_mem_neView on Github →