Nat.succ_inj: law of bend-mathlib@0.8.1.0
Import: import bend-mathlib@0.8.1.0/nat.bend as Nat
Lines 141-146 of bend-mathlib@0.8.1.0/nat.bend: https://jend.leeeet.dev/read.txt?path=bend-mathlib@0.8.1.0/nat.bend&start_line=141&end_line=146

import Base

# The successor function is injective: a + 1 = b + 1 implies a = b.
law succ_inj:
  for -a: Nat
  for -b: Nat
  for e: {1n+a == 1n+b : Nat}
  {a == b : Nat}

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=bend-mathlib@0.8.1.0/nat.bend&name=internal_pred