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: For all x_10, x_10 is a musician. For all x_10, x_10 will not drink water. For all x_10, x_10 will cook or x_10 will play squash. For all x_10, x_10 will play squash if and only if x_10 will drink water. For all x_10, x_10 will not cook or x_10 is a taxi driver.
For all x_10, x_10 will play squash or x_10 is a taxi driver can be inferred via the universal resolution rule. For all x_10, if x_10 plays squash, then x_10 is drinking water can be inferred via the universal biconditional elimination rule. For all x_10, if x_10 drinks water, then x_10 is playing squash can be inferred via the universal biconditional elimination rule. For all x_10, x_10 will not play squash can be inferred via the universal biconditional elimination rule.