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Syllogism Concepts
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In this lesson Bhagyashree Ghosh discusses the concept of Venn diagrams.

Bhagyashree Ghosh is teaching live on Unacademy Plus

Bhagyashree Ghosh
Author, VARC Expert, 99%tiler, MBA, CS Professional level, Google Me to know more..

U
Unacademy user
bahut hi acha..h sir..pls AAP continue baante rhiye..new chapters pe fast sir pls....pre board aajyga ab
Sandeep Dhuper
a year ago
sure...
The volume is too low.
Bhagyashree Ghosh
4 months ago
Sarfaraz please use headphones and try once again... that should fix this issue.. as it is playing okay from my end.. and kindly let me know if the problem still persists. :-)
Sarfaraz Sheikh
4 months ago
Actually, it's just kinda messy practicing with earphones on but it's okay until I get to learn new things. Thanks for replying.
Bhagyashree Ghosh
4 months ago
:-) anytime
Sarfaraz Sheikh
4 months ago
have a good day :)
  1. Syllogisms: Quick Solving Tips By Bhagyashree Ghosh


  2. Bhagyashree Ghosh VALR 99%tiler, CAT 2014 95%tile MAT 2014 99%tile MBA Finance, CS Professional pursuing Hobbies: Read, Write, Teach, Talk, Music, YouTubing unacademy Https://unacademy.com/user/bhghosh93


  3. Syllogism Concepts


  4. e What are Syllogisms? A syllogism is a kind of logical argument that applies deductive reasoning to arrive at a conclusion based on two or more premises (also called propositions) that are asserted or assumed to be true. The conclusion asserts no more than what is already contained, implicitly, in the premises. If it does, the syllogism is invalid . An important thing to be kept in mind is that one has to take the given statements to be true even if they seem to be at variance from commonly known facts.


  5. Types of Premises . A premise is a statement which comprises of two terms: a subject and a predicate, connected by a relation. Subject is that about which something is said Predicate states something about the subject If another premise contains one of these terms (known as the common term), we can deduce a relation between the non- common terms.


  6. Tvpe 1: All A are B The general representation of this premise is as shown below: O But there may be a case where A B, then this premise is true. A=B


  7. Type 2: No A are B O The premise is represented as


  8. Tvpe 3:Some A are B O It can be depicted as The Shaded portion denotes the premise. NOTE: Looking at this general representation, one may perceive that if"some A are B, then some A are not B,


  9. e Type 3:Some A are B But the following cases can also imply 'Some A are B' All B are A. TAlaAd e are identica. O A and B are identical. B A-B We can see that in the case where (i) A is a subset of B or (ii) A B, the premise 'some A are not B' does not hold true.


  10. Type 4 : Some A are not B The premise is represented in two ways OR