Tournament.by_rank.eq: def of unified-nsga-iii@0.2.2.0
Import: import unified-nsga-iii@0.2.2.0/tournament.bend as Tournament
Lines 52-57 of unified-nsga-iii@0.2.2.0/tournament.bend: https://jend.leeeet.dev/read.txt?path=unified-nsga-iii@0.2.2.0/tournament.bend&start_line=52&end_line=57

import Base
import unified-nsga-iii@0.2.2.0/individual.bend as Ind
import unified-nsga-iii@0.2.2.0/rng.bend as Rng

def by_rank.eq(+a: Ind.Individual, +b: Ind.Individual, rng: Rng.State, same: Bool) -> Rng.State & Ind.Individual:
  match same:
    case True{}:
      by_dist(a, b, rng)
    case False{}:
      cmp_pick(a, b, rng, Nat.is_lt(Ind.rank(a), Ind.rank(b)), Nat.is_lt(Ind.rank(b), Ind.rank(a)))

Uses (8):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.is_lt
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/individual.bend&name=Individual
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/individual.bend&name=rank
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/rng.bend&name=State
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/tournament.bend&name=by_dist
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/tournament.bend&name=cmp_pick