def add
import bend-collections-laws-math@1.0.0.0/proofs/lib/lemmas/src/time.bend as Timeimport Base
import bend-collections-laws-math@1.0.0.0/proofs/lib/lemmas/types/model.bend as T
import bend-collections-laws-math@1.0.0.0/proofs/lib/lemmas/src/wide.bend as W
5def add(a: T.Int64, b: T.Int64) -> T.Int64:
6 match a b:
7 case T.I64{x} T.I64{y}:
8 T.I64{W.add(x, y)}