QUIZ 2 answers
Symbolize the following, using the suggested notation:
A = Albert jogs regularly; B = Bob jogs regularly; C = Carol jogs regularly;
L = Bob is lazy; M = Carol is a marathon runner; H = Albert is healthy
Either Albert jogs regularly or Bob jogs regularly, but they don't both jog regularly.
(A V B) • ~(A • B)
If Albert jogs regularly, then Carol does provided that Bob does.
A (B C)
If Albert is healthy if he jogs regularly, then if Bob is lazy, he doesn't jog regularly.
(A H) (L ~B)
Albert is healthy and Bob is not lazy, unless they both jog regularly.
(H • ~L) V (A • B) or ~(A • B) (H • ~L)
If Carol is a marathon runner or Bob is not lazy, then they both jog regularly.
(M V ~L) (C • B)
Assume that A is True; B is True; and C is False. What are the following?
(A • B) C FALSE
~[(A C) (A B)] FALSE
(~A V C) V ~B FALSE
True or False?
9. If D is False, both D E and D D are True. TRUE
10. If D and E are both False, and we don’t know the truth-value of F, then
(D V (F V ~E) is True. TRUE
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