Question 1
Statements:
All durable are rare.
No rare is a innovative.
Conclusions:
I. Some innovative are durable.
II. No innovative is a durable.
Complementary Pair Concept:
Conclusions I and II form a complementary pair: "Some innovative are durable" and "No innovative is a durable"
These are opposite statements - at least one MUST be true.
Venn Diagram Method:
Step 1: "All durable are rare" → Circle of durable inside rare
Step 2: "No rare is a innovative" → Circles of rare and innovative completely separate
Step 3: Since durable is inside rare, and rare is separate from innovative, then durable is also separate from innovative
Step 4: Result: "No innovative is a durable" is TRUE
Analytical Method:
All durable are rare (A) + No rare is a innovative (E) = A + E = E = No durable is a innovative
By conversion: No innovative is a durable
Either-Or Case:
Since the conclusions form a complementary pair and one is definitely true, answer is "Either-Or".
Answer: Either conclusion I or II follows
Conclusions I and II form a complementary pair: "Some innovative are durable" and "No innovative is a durable"
These are opposite statements - at least one MUST be true.
Venn Diagram Method:
Step 1: "All durable are rare" → Circle of durable inside rare
Step 2: "No rare is a innovative" → Circles of rare and innovative completely separate
Step 3: Since durable is inside rare, and rare is separate from innovative, then durable is also separate from innovative
Step 4: Result: "No innovative is a durable" is TRUE
Analytical Method:
All durable are rare (A) + No rare is a innovative (E) = A + E = E = No durable is a innovative
By conversion: No innovative is a durable
Either-Or Case:
Since the conclusions form a complementary pair and one is definitely true, answer is "Either-Or".
Answer: Either conclusion I or II follows