Theorems · Theorem · combinatorics
Finset.card_eraseNone_le
∀ {α : Type u_1} (s : Finset (Option α)), (Finset.eraseNone s).card ≤ s.card- Defined in
- Mathlib.Data.Finset.Option
- Cited by
- 0 results in Mathlib
- Foundations
- Depth 79 from the axioms · uses propext, Classical.choice, Quot.sound
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Cites7
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- DFunLike.coestatement · cited by 62,936
- Finsetstatement and proof · cited by 13,712
- Finset.cardstatement and proof · cited by 2,327
- OrderHomstatement · cited by 934
- Finset.eraseNonestatement · cited by 21
- Finset.card_eraseNone_eq_card_eraseproof · cited by 3
- Finset.card_erase_leproof · cited by 1
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