Determine the truth value of the following compound propositions:  (a) 2 + 1 < 8 and 5 + 3 > 5 True or False  (b) 4 + 1 = 7 or -1 + 3  ≤ -2 True or False  (c) -3 - 4 < -10, then 4 + 2 ≥ 2 True or False (d) -3 - 5 ≠ -10 if and only if -5 + 2 < 1 True or False

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