Logical Reasoning
Syllogisms and Venn diagrams
Decide which conclusions must follow from given statements.
Draw Venn diagrams for each statement. A conclusion follows only if it is true in every possible diagram.
- All A are B: circle A inside B.
- Some A are B: circles overlap.
- No A is B: circles separate.
📌 Remember for the exam
- "Some" means at least one, possibly all
- Test the conclusion against every possible arrangement