NatOrder.ge_le: def of stelliferous@0.0.2.0
Import: import stelliferous@0.0.2.0/proofs/nat_order.bend as NatOrder
Lines 225-234 of stelliferous@0.0.2.0/proofs/nat_order.bend: https://jend.leeeet.dev/read.txt?path=stelliferous@0.0.2.0/proofs/nat_order.bend&start_line=225&end_line=234

import Base

def ge_le(+a: Nat,+b: Nat) -> {Nat.is_ge(a,b) == Nat.is_le(b,a) : Bool}:
  match a b:
    case 0n 0n:
      {==}
    case 0n 1n+b:
      {==}
    case 1n+a 0n:
      {==}
    case 1n+a 1n+b:
      ge_le(a,b)

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.is_ge
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.is_le