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Theorem set.union_preimage_subset

Modification history

2022-12-07 20:30
src/data/set/basic.lean
refactor(data/set/basic): move image, preimage, and range to a new file (#17842) …
Modified set.union_preimage_subsetView on Github →
2017-10-15 02:26
data/set/basic.lean
Merge remote-tracking branch 'minchaowu/master'
Added set.union_preimage_subsetView on Github →
2017-10-15 01:58
data/set/basic.lean
feat(*): working on list/basic, robusting simp proofs
Deleted set.union_preimage_subsetView on Github →
2017-10-02 00:06
data/set/basic.lean
Merge branch 'master' into master
Added set.union_preimage_subsetView on Github →
2017-09-28 18:07
data/set/basic.lean
feat(topology): add Borel spaces
Deleted set.union_preimage_subsetView on Github →
2017-09-22 12:52
data/set/basic.lean
feat(data/set): add functions over sets
Added set.union_preimage_subsetView on Github →