What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: For all x_5, x_5 will make tea. For all x_5, x_5 is a janitor. For all x_5, x_5 is a lawyer.
For all x_5, x_5 will make tea and x_5 is a janitor can be inferred via the universal conjunction rule. For all x_5, x_5 will make tea and x_5 is a lawyer can be inferred via the universal conjunction rule. For all x_5, x_5 is a janitor and x_5 will make tea can be inferred via the universal conjunction rule. For all x_5, x_5 is a janitor and x_5 is a lawyer can be inferred via the universal conjunction rule. For all x_5, x_5 is a lawyer and x_5 will make tea can be inferred via the universal conjunction rule. For all x_5, x_5 is a lawyer and x_5 is a janitor can be inferred via the universal conjunction rule.