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: Jessica is a taxi driver or it is cloudy. For all x_10, if x_10 were curious, then x_10 is a taxi driver. If it is cloudy, then Jessica is curious. For all x_10, if x_10 were a taxi driver, then x_10 is curious.
For all x_10, x_10 is curious if and only if x_10 is a taxi driver can be inferred via the universal biconditional introduction rule. For all x_10, x_10 is a taxi driver if and only if x_10 is curious can be inferred via the universal biconditional introduction rule.