Logical Reasoning — Syllogisms — Free Aptitude Tutorial
Learn Logical Reasoning — Syllogisms in Aptitude with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.
TL;DR: Learn Logical Reasoning — Syllogisms in Aptitude with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.
Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated
Logical Reasoning — Syllogisms in Aptitude
Syllogism: Drawing conclusions from given statements. Always treat statements as 100% true.
Types of statements: All A are B (Universal Positive). No A is B (Universal Negative). Some A are B (Particular Positive). Some A are not B (Particular Negative).
Venn Diagram approach: Draw circles for each group, overlap based on the statement.
Conversion rules: "All A are B" → "Some B are A" is valid. "No A is B" → "No B is A" is valid. "Some A are B" → "Some B are A" is valid.
If conclusion is definite it follows. If it is "possible" it follows when direct conclusion does not.
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