A syllogism is a logical reasoning question with two or more statements (premises) that you accept as true, followed by conclusions you must determine logically follow from them — regardless of real-world accuracy.
Syllogism questions test whether you can apply strict logical rules to statements, even when a statement sounds factually odd — the key skill is following the logic exactly, not judging whether the premise is realistic.
Statements: All pens are books. All books are tables.
Conclusion: All pens are tables.
This conclusion is logically valid — even though "all pens are books" isn't true in the real world, syllogism questions ask you to accept the premises as given and reason strictly from them.
Venn diagrams are the most common tool for solving these systematically, by visually representing how the groups described in each statement relate to each other.
Last reviewed: September 2026