2. Let D be the set whose elements are precisely 4, 5, and let E be the set whose elements are precisely 2,3,5,7, 11. Co
Posted: Sat Feb 19, 2022 3:22 pm
2. Let D be the set whose elements are precisely 4, 5, and let E be the set whose elements are precisely 2,3,5,7, 11. Consider the following propositions. (a) Jy, z E E VxED (x = y V x = z). (b) Vy € E 32 € E (y= z). (((Ey € E x2 + 2y3 = 1231) + (H2 € E 23 - 3x = 1231)) (c) 3x ED v ((Hz € E 23 - 3x = 1231) + (Ey E x2 + 2y3 = 1231))) Which of these are true? Which of these are false? Briefly explain your answers. [6 marks] - - (Foto € —