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_22, x_22 will not work. For all x_22, x_22 will work or x_22 will play tennis. It is not cloudy. It is cloudy if and only if Susan is drinking water.
If it is cloudy, then Susan is drinking water can be inferred via the biconditional elimination rule. If Susan drinks water, then it is cloudy can be inferred via the biconditional elimination rule. Susan is not drinking water can be inferred via the biconditional elimination rule. For all x_22, x_22 will play tennis can be inferred via the universal disjunctive syllogism rule.