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: It is sunny. Joseph is rich. Joseph is a musician.
It is sunny and Joseph is rich can be inferred via the conjunction rule. It is sunny and Joseph is a musician can be inferred via the conjunction rule. Joseph is rich and it is sunny can be inferred via the conjunction rule. Joseph is rich and Joseph is a musician can be inferred via the conjunction rule. Joseph is a musician and it is sunny can be inferred via the conjunction rule. Joseph is a musician and Joseph is rich can be inferred via the conjunction rule.