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_11, x_11 will go running if and only if x_11 will make tea. There is at least one x_11 for which x_11 will work if and only if x_11 is bored. For all x_11, x_11 is bored if and only if x_11 will make tea. For all x_11, x_11 will not go running.
For all x_11, if x_11 goes running, then x_11 is making tea can be inferred via the universal biconditional elimination rule. For all x_11, if x_11 were bored, then x_11 is making tea can be inferred via the universal biconditional elimination rule. There is at least one x_11 for which if x_11 works, then x_11 is bored can be inferred via the existential biconditional elimination rule. For all x_11, if x_11 makes tea, then x_11 is running can be inferred via the universal biconditional elimination rule. For all x_11, if x_11 makes tea, then x_11 is bored can be inferred via the universal biconditional elimination rule. There is at least one x_11 for which if x_11 were bored, then x_11 is working can be inferred via the existential biconditional elimination rule. For all x_11, x_11 will not make tea can be inferred via the universal biconditional elimination rule.