What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one x_11 for which x_11 is not a politician. For all x_11, x_11 is a politician if and only if x_11 is a soldier. For all x_11, if x_11 plays tennis, then x_11 is a soldier. For all x_11, x_11 will play tennis or x_11 is not a soldier.
For all x_11, if x_11 were a soldier, then x_11 is playing tennis. For all x_11, if x_11 were a politician, then x_11 is a soldier. For all x_11, if x_11 were a soldier, then x_11 is a politician. There is at least one x_11 for which x_11 is not a soldier.