def bx.u32
import bend-osdev-cbc@0.1.0.0/PROOF.bend as PROOFimport Base
78def bx.u32(a: U32, b: U32) -> {U32.xor(a, U32.xor(a, b)) == b : U32}:
79 match a b:
80 case U32{x} U32{y}:
81 %bx.word(32n, x, y) : {U32{Word.xor(32n, x, Word.xor(32n, x, y))} == U32{_} : U32}
82 {==}