theorem CommunicativeArithmeticGuard.selectedBackend.eq_1
theorem CommunicativeArithmeticGuard.selectedBackend.eq_1: j81b1gmr.CommunicativeArithmeticGuard.selectedBackend j81b1gmr.CommunicativeArithmeticGuard.Boundary.internal = j81b1gmr.CommunicativeArithmeticGuard.Backend.fp32