Critical Reasoning

additional premise and counter premise recognition drill

page no:26 & 27

Q : During last night's robbery, the thief was unable to open the safe. Thus, last night's robbery was unsuccessful despite of the fact that the thief stole several documents. After all, nothing in those documents was as valuable as the money in the safe.

Answer by powerscore:

premise: During last night's robbery, the theif was unable to open the safe

counter-premise: despite the fact that the thief stole several documents

Additional premise: after all nothing in those documents was as valuable as the money in the safe

conclusion: thus last night's robbery was unsuccessful.




my query: on page no: 25, "after all" comes under the list of counter premise indicators. so, while solving the mini-drill, I marked "after all" as counter premise indicator. is it a typo in the book or I haven't got the concept yet? I'm new to the forum so, please ignore if I you think my question is silly. please help me with this question.