PROOF.un.dz0: def of bend-osdev-u32@0.1.0.0
Import: import bend-osdev-u32@0.1.0.0/PROOF.bend as PROOF
Lines 2063-2068 of bend-osdev-u32@0.1.0.0/PROOF.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-u32@0.1.0.0/PROOF.bend&start_line=2063&end_line=2068

import Base

def un.dz0(v: Nat, e: {Nat.double(v) == 0n : Nat}) -> {v == 0n : Nat}:
  match v:
    case 0n:
      {==}
    case 1n+ +p:
      Empty.absurd({1n+p == 0n : Nat}, un.sz(1n+Nat.double(p), e))

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Empty.absurd
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.double
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-u32@0.1.0.0/PROOF.bend&name=un.sz