Multiple Choice
determine whether the argument is valid or invalid. If it is invalid, select a counterexample.
-1. I • (J H)
2) I ⊃ ∼J
3) H ≡ (K I) / K
A) Valid
B) Invalid. Counterexample when H and I are true and J and K are false
C) Invalid. Counterexample when I is true and H, J, and K are false
D) Invalid. Counterexample when H, I, and J are true and K is false
E) Invalid. Counterexample when J is true, and H, I, and K are false
Correct Answer:

Verified
Correct Answer:
Verified
Q211: 1. D • ∼E<br>-Which of the following
Q212: derive the conclusions of each of the
Q213: 1. F ⊃ (C <span
Q214: 1. V ≡ (W <span
Q215: If matter is atomic, then we can
Q217: Either arithmetic and logic are both
Q218: (P <span class="ql-formula" data-value=" \lor
Q219: 1. (P <span class="ql-formula" data-value="
Q220: [(G • H) ⊃ I] ⊃ [G
Q221: If neuroscience makes progress, then the mind