fact: Definition dist := fun _22820 : prod nat nat => Nat.add (Nat.sub (@fst nat nat _22820) (@snd nat nat _22820)) (Nat.sub (@snd nat nat _22820) (@fst nat nat _22820)).
imports: Coq.Logic.ClassicalEpsilon ClassicalFacts PropExtensionalityFacts Lia PeanoNat ProofIrrelevance ExtensionalityFacts List Coq.Strings.Ascii