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: There is at least one y for which y is a server if and only if y will go running. For all y, if y goes running, then y is a server.
There is at least one y for which if y were a server, then y is running can be inferred via the existential biconditional elimination rule. There is at least one y for which if y goes running, then y is a server can be inferred via the existential biconditional elimination rule.