Unless the you study, you will fail. (a) You studied. (b) You passed. (c) You did not study. (d) You failed.
Explanation:
Here, p = You study. q = You failed.
Statement: Unless p, q
Conclusions: 1. ~p ⇒ q 2. ~q ⇒ p
It can be cd or ba.
Hence, option (a).
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