Theorems · Definition · combinatorics

Multiset.filter

{α : Type u_1} → (p : α → Prop) → [DecidablePred p] → Multiset α → Multiset α

Filter p s returns the elements in s (with the same multiplicities) which satisfy p, and removes the rest.

Defined in

Mathlib.Data.Multiset.Filter

Cited by

102 results in Mathlib

Foundations

Depth 14 from the axioms, rests on 82 definitions · uses propext, Quot.sound

Assumes

DecidablePred