def add_zero_right
import bendtorch-core@0.1.0.0/src/tensor/contracts/build_facts.bend as BuildFactsimport Base
120def add_zero_right(+number: Nat) -> {Nat.add(number, 0n) == number : Nat}:
121 match number:
122 case 0n:
123 {==}
124 case 1n+p:
125 Equal.cong(Nat, Nat, x => 1n+x, Nat.add(p, 0n), p, add_zero_right(p))