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: James is a politician if and only if it is cold. It is not raining or it is late. If it is late, then it is cold. It is raining or James is a politician.
James is a politician or it is late can be inferred via the resolution rule. If James were a politician, then it is cold can be inferred via the biconditional elimination rule. If it is cold, then James is a politician can be inferred via the biconditional elimination rule.