theorem CommunicativeArithmeticGuard.irreversible.eq_1
theorem CommunicativeArithmeticGuard.irreversible.eq_1: j81b1gmr.CommunicativeArithmeticGuard.irreversible j81b1gmr.CommunicativeArithmeticGuard.Boundary.internal = False
theorem CommunicativeArithmeticGuard.irreversible.eq_1
theorem CommunicativeArithmeticGuard.irreversible.eq_1: j81b1gmr.CommunicativeArithmeticGuard.irreversible j81b1gmr.CommunicativeArithmeticGuard.Boundary.internal = False