NatOrder.rld.c1a: def of bend-kit-collections@0.1.4.1
Import: import bend-kit-collections@0.1.4.1/nat_order.bend as NatOrder
Lines 476-477 of bend-kit-collections@0.1.4.1/nat_order.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-collections@0.1.4.1/nat_order.bend&start_line=476&end_line=477

import Base

def rld.c1a(+l: Nat, +x: Nat, +y: Nat, +b: Nat, h1: LE(Nat.add(x, y), Nat.mul(3n, b)), h4: LE(Nat.add(Nat.add(x, y), b), Nat.add(3n, Nat.mul(3n, l))), pl: LE(1n, l), py: LE(1n, y)) -> LE(x, Nat.mul(3n, l)):
  by_contra(x, Nat.mul(3n, l), ng => rld.c1a.k(l, x, y, b, ng, h1, h4, pl, py))

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.mul
  https://jend.leeeet.dev/definition.txt?path=bend-kit-collections@0.1.4.1/nat_order.bend&name=LE
  https://jend.leeeet.dev/definition.txt?path=bend-kit-collections@0.1.4.1/nat_order.bend&name=by_contra
  https://jend.leeeet.dev/definition.txt?path=bend-kit-collections@0.1.4.1/nat_order.bend&name=rld.c1a.k