def occ

bend-collections-laws-math@1.0.0.0 · proofs/math/random/shuffle.bend:16

import Base
import bend-collections-laws-math@1.0.0.0/spec/math/random/rand.bend as SR

16def occ(~A: Data, ~V: Data, ~rel: A -> V -> Bool, +v: V, +xs: List<&2, A>) -> Nat:
17  SR.occurrences(~A, ~V, ~rel, v, xs)