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Select a Counterexample for the Given Invalid Argument

Question 194

Multiple Choice

select a counterexample for the given invalid argument.
-1. (∀x) (Hx ⊃ ∼Ix)
2) (∀x) (Ix ⊃ Ux) / (∀x) (Hx ⊃ ∼Ux)


A) Counterexample in a domain of 1 member, in which: Ha: True Ia: False Ua: True
B) Counterexample in a domain of 1 member, in which: Ha: False Ia: False Ua: True
C) Counterexample in a domain of 1 member, in which: Ha: True Ia: False Ua: False
D) Counterexample in a domain of 1 member, in which: Ha: False Ia: False Ua: False
E) Counterexample in a domain of 1 member, in which: Ha: False Ia: True Ua: False

Correct Answer:

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