F64round.le1: def of bend-collections-laws-math@1.0.0.0
Import: import bend-collections-laws-math@1.0.0.0/proofs/math/typed/f64round.bend as F64round
Lines 576-583 of bend-collections-laws-math@1.0.0.0/proofs/math/typed/f64round.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-math@1.0.0.0/proofs/math/typed/f64round.bend&start_line=576&end_line=583

import Base
import bend-collections-laws-math@1.0.0.0/spec/lib/common.bend as C
import bend-collections-laws-math@1.0.0.0/proofs/math/typed/natcmp.bend as NC

def le1(+t: Nat, +h: {C.fits(1n, t) == True{} : Bool}) -> {Nat.is_le(t, 1n) == True{} : Bool}:
  match t:
    case 0n:
      {==}
    case 1n:
      {==}
    case 2n+ +p:
      NC.absurd_tf({Nat.is_le(2n+p, 1n) == True{} : Bool}, h)

Uses (5):
  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_le
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-math@1.0.0.0/proofs/math/typed/natcmp.bend&name=absurd_tf
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-math@1.0.0.0/spec/lib/common.bend&name=fits