The worked question on this page is original educational practice. It is not represented as a question from an official previous-year examination paper.
01 / UNDERSTANDING
Review the question
Create original syllogisms with invented categories and simple diagrams. Require a counter-diagram for a conclusion that is possible but not necessary, making the distinction visible.
02 / UNDERSTANDING
The concept in context
Keep possibility separate from necessity. Two sets inside a larger set need not overlap each other, and universal containment alone does not establish an existing member under standard modern set semantics. If a test states a different convention, read it carefully. Diagrams should show what is required while leaving unspecified regions genuinely open.
03 / UNDERSTANDING
A worked learning case
Original educational case. In the original premises, all auditors are employees and no employee is a robot. Every auditor must therefore lie outside the robot set. By contrast, all auditors are employees and all tellers are employees does not require auditors and tellers to overlap. Shared containment establishes a common larger category, not a shared member.
ORIGINAL EDUCATIONAL PRACTICE
Try it before you check.
Original practice: All roses are flowers. No flower is metal. Does no rose is metal follow?
Show the answer and reasoning
Yes.
The rose set lies entirely inside the flower set, while the flower set is disjoint from metal. Consequently, no part of the rose set can overlap metal. This follows from the supplied containment and exclusion without relying on botanical or material knowledge, and it does not require asserting that any rose exists.
Two traps to watch for.
- Treating two subsets of a common set as necessarily overlapping.
- Importing real-world facts instead of using only the premises.
YOUR TOPIC-SPECIFIC LEARNING MAP
Learn from the attempt
Translate each premise into a set relation.
Mark explicit existence separately.
Test necessity rather than mere possibility.
Explain the idea, apply it to a new situation, then check what changed in your reasoning.
BANKERS TUTORIAL · SOURCE NOTES
Keep the source alongside your notes.
Official links provide subject context and authoritative reference material. This guide’s explanation, scenario and question are original Bankers Tutorial learning content.
- sbi.bank.in https://sbi.bank.in/web/careers/current-openings
- sbi.bank.in https://sbi.bank.in/webfiles/uploads/files_2627/09/SBI_JA-Customer_Support_Sales-IH_Pre-2026-27_Eng.pdf
For SBI preparation, check the current official notice before relying on changing dates, rules or examination requirements.
