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v3
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Commit
2021-12-06 19:23
1d5202ae
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feat(data/multiset): add some lemmas about filter (eq x) (
#10626
)
Estimated changes
Modified
src/data/multiset/basic.lean
added
theorem
multiset.count_filter
added
theorem
multiset.filter_eq'
added
theorem
multiset.filter_eq
added
theorem
multiset.pow_count