No ballerinas are awkward dancers. Therefore, it is false that all ballerinas are awkward dancers.
A) Invalid, illicit conversion.
B) Invalid, illicit contrary.
C) Invalid, illicit subalternation.
D) Valid, no fallacy.
E) Invalid, existential fallacy.
Correct Answer:
Verified
Q64: All A are non-B. (F) Contrary
A) No
Q65: No non-A are non-B. (F) No B
Q66: Some A are non-B. (T) All A
Q67: No A are non-B. (T) Obversion
A) No
Q68: Some gold watches are retirement gifts. Therefore,
Q70: Some flying horses are dependable steeds. Therefore,
Q71: No A are B. (T) Some A
Q72: Some non-A are not B. (F) Contraposition
A)
Q73: Some friendly gnomes are creatures that live
Q74: All A are non-B. (F) No A
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