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_14, x_14 will drink water or x_14 will play a game. For all x_14, x_14 will climb a mountain if and only if x_14 is a mechanic. For all x_14, x_14 will not drink water or x_14 is a soldier. For all x_14, x_14 is not a mechanic. For all x_14, if x_14 plays a game, then x_14 is climbing a mountain.
For all x_14, x_14 will play a game or x_14 is a soldier can be inferred via the universal resolution rule. For all x_14, if x_14 climbs a mountain, then x_14 is a mechanic can be inferred via the universal biconditional elimination rule. For all x_14, if x_14 were a mechanic, then x_14 is climbing a mountain can be inferred via the universal biconditional elimination rule. For all x_14, x_14 will not climb a mountain can be inferred via the universal biconditional elimination rule.