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: Susan is an office clerk or it is not overcast. It is overcast or Susan is not an office clerk.
If it is overcast, then Susan is an office clerk can be inferred via the rewriting rule. If Susan were an office clerk, then it is overcast can be inferred via the rewriting rule.