Consider the following premises. For all x_6, x_6 is happy or x_6 will not play squash. For all x_6, x_6 is an office clerk or x_6 is not happy. Can we infer the following from them? There is at least one x_6 for which the fact that x_6 plays squash does not imply that x_6 is an office clerk.
 From the fact that for all x_6, x_6 is happy or x_6 will not play squash we can infer that for all x_6, if x_6 plays squash, then x_6 is happy. From the fact that for all x_6, x_6 is an office clerk or x_6 is not happy we can infer that for all x_6, if x_6 were happy, then x_6 is an office clerk. Finally, from the fact that for all x_6, if x_6 plays squash, then x_6 is happy, and that for all x_6, if x_6 were happy, then x_6 is an office clerk we can infer that for all x_6, if x_6 plays squash, then x_6 is an office clerk, which contradicts that There is at least one x_6 for which the fact that x_6 plays squash does not imply that x_6 is an office clerk. Therefore, the answer is no.