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 Susan were a carpenter, then Jennifer is a lawyer. Susan is a carpenter if and only if it is windy. Jennifer is a lawyer if and only if it is windy.
If Susan were a carpenter, then it is windy can be inferred via the biconditional elimination rule. If Jennifer were a lawyer, then it is windy can be inferred via the biconditional elimination rule. If it is windy, then Susan is a carpenter can be inferred via the biconditional elimination rule. If it is windy, then Jennifer is a lawyer can be inferred via the biconditional elimination rule.