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Theorem finset.union_eq_left_iff_subset

Modification history

2022-02-12 19:33
src/data/finset/basic.lean
chore(data/finset/basic): Golf and compress (#11987) …
Modified finset.union_eq_left_iff_subsetView on Github →
2020-03-02 18:11
src/data/finset.lean
feat(data/finset): new basic material on finsets and fintypes (#2068) …
Added finset.union_eq_left_iff_subsetView on Github →