Exercise 35 Page 198

From the exercise, we can see that M contains integers starting at 1 and continuing up to 19. Furthermore, each element of M is an odd number. However, we can see that the number 15 is missing. M={1, 3, 5, 7, 9, 11, 13, 17, 19} Letting the variable m describes these set elements, then we have that the set M is made of the elements m such that every m is an odd integer greater than or equal to 1 and less than or equal to 19, excluding 15. Now we can write it in set-builder notation. M={ m | m is an odd integer,1≤ m≤ 19, m≠ 15 }