Q:
All windows are doors. No door is wall
Conclusions:
1. No window is wall
2. No Wall is door
Answer & Explanation
Answer: D) Both 1 and 2 follow
Explanation: Since both the premises are universal and one premise is negative, the conclusion must be universal negative. Also, the conclusion should not contain the middle term. So, 1 follows.
However, 2 is the converse of the second premise and thus it also holds.
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