General Mental Ability

Syllogism & Venn Diagram Logic

Deducing valid conclusions from statement sets ("All A are B", "Some B are C") using Venn diagrams.

Target: EPFO APFC 2026Topic-Level RAG Context ActiveModel: Nemotron 3.5 Lightning 30B / 120B

Topic Overview

Deducing valid conclusions from statement sets ("All A are B", "Some B are C") using Venn diagrams.

Key Syllabus Concepts

  • Types of Categorical Propositions: A (All), E (No), I (Some), O (Some Not)
  • Venn Diagram overlap techniques for 2 and 3 sets
  • Either-Or Condition rules in Syllogism
  • Possibility conclusions vs Definite conclusions

High-Yield Important Points & Rules

  • 💡 "Some A are B" does NOT automatically imply "Some A are not B" unless stated.
  • 💡 Complementary pairs for Either-Or: (Some + No) or (All + Some Not) with same subject and predicate.

Historical UPSC EPFO PYQ Relevance

3 Matched PYQs
2025EPFO APFCGeneral Ability Test• Q.23
Full Question
Which of the following statements about Home Rule Movement is/are correct?
1
The advocates of the Home Rule Movement believed in constitutional methods and were opposed to violence and revolutionary action.
2
In 1917, the two Home Rule Leagues of Lokmanya Tilak and Annie Besant worked in cooperation with each other.
3
Annie Besant confined her activities to the Bombay Presidency and the Central Provinces and the rest of India was left to Lokmanya Tilak.
2025EPFO APFCGeneral Ability Test• Q.24
Full Question
Which of the following statements regarding the Freedom Struggle from 1920 to 1935 is/are correct?
1
In Bihar and Bengal, the Non-Cooperation Movement owed its effectiveness to the participation of peasants.
2
In Bihar they were organised against the planters under the banner of Kisan Sabha.
3
In Midnapore in Bengal, Mahishya peasants rallied against the taxes of the Union Board under the leadership of Birendranath Sasmal.
2025EPFO APFCGeneral Ability Test• Q.25
Full Question
Which of the following statements about Bharata's Natyashastra is/are correct?
1
It is dated by scholars between the second century BCE and the second century CE.
2
It analyses theatrical spectacle as an amalgam of speech, vocal and instrumental music, gesture, mime, etc.
3
The ground it covers is less extensive than Aristotle's Poetics, its nearest ancient Greek counterpart.

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