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: If it is windy, then Jessica is cooking. Jessica is not sleeping. For all x_12, if x_12 sleeps, then x_12 is cooking. For all x_12, if x_12 cooks, then x_12 is sleeping.
For all x_12, x_12 will sleep if and only if x_12 will cook can be inferred via the universal biconditional introduction rule. For all x_12, x_12 will cook if and only if x_12 will sleep can be inferred via the universal biconditional introduction rule.