Logical Reasoning Notes

Syllogism Questions PDF – Tricks | Logical Reasoning

Syllogism - Logical Reasoning

Syllogism – Reasoning

One of the important topics from the Logical Reasoning section. It can be very confusing after exploring multiple conditions so keep track of a variety of Syllogism Questions. The article has simple tricks to quickly solve syllogism questions followed by links to syllogism questions PDF.

syllogisms notes pdf

Syllogism Tricks

Rule of All +
Statement 1 Statement 2 Conclusion
All All All
All No No
All Some No conclusion
Rule of No+ and Some not+
Statement 1 Statement 2 Conclusion
No All Some not
No No Some not
No Some No conclusion
Some not Anything No conclusion
Rule of Some+
Statement 1 Statement 2 Conclusion
Some All Some
Some No Some not
Some Some No conclusion

 

The Question of Possibility
Statement Possibility
All A are B Some B are A
Some A are B All B are A
Some B are not A All A are B

 

Example

Some schools are classes.
Some classes are teachers.
All teachers are students.

Conclusions:
I. Some students are classes.
II. All schools being students is a possibility.

 

Solution:

C1: Some students are classes.
Some classes are teachers + All teachers are students = Some classes are students. Clearly, C1 follows.

 

 C2: All schools being students is a possibility.
Here, no negative statement is given among the statements. Clearly, possibilities between classes do exist. C2 follows as well. Therefore, Both I and II follow is the answer


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