Permutation.chi: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/spec/crypto/keccak/permutation.bend as Permutation
Lines 9-12 of bend-collections-laws-crypto@1.0.0.0/spec/crypto/keccak/permutation.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/keccak/permutation.bend&start_line=9&end_line=12

import Base
import bend-collections-laws-crypto@1.0.0.0/src/crypto/keccak/types.bend as T

def chi(a: T.Lane, b: T.Lane, c: T.Lane) -> T.Lane:
  match a b c:
    case T.W{al,ah} T.W{bl,bh} T.W{cl,ch}:
      T.W{U32.xor(al,U32.and(U32.xor(bl,4294967295),cl)),U32.xor(ah,U32.and(U32.xor(bh,4294967295),ch))}

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.xor
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/crypto/keccak/types.bend&name=Lane