Consider the following premises. For all x_8, if x_8 were curious, then x_8 is an astronaut. For all x_8, x_8 is curious or x_8 will read a book. There is at least one x_8 for which if x_8 reads a book, then x_8 is an astronaut. For all x_8, x_8 is happy. Can we infer the following from them? For all x_8, either x_8 is happy or x_8 is an astronaut are not true.
 From the fact that for all x_8, if x_8 were curious, then x_8 is an astronaut, that there is at least one x_8 for which if x_8 reads a book, then x_8 is an astronaut, and that for all x_8, x_8 is curious or x_8 will read a book we can infer that there is at least one x_8 for which x_8 is an astronaut. Finally, from the fact that for all x_8, x_8 is happy, and that there is at least one x_8 for which x_8 is an astronaut we can infer that there is at least one x_8 for which x_8 is happy and x_8 is an astronaut, which contradicts that For all x_8, either x_8 is happy or x_8 is an astronaut are not true. Therefore, the answer is no.