Venn Diagrams for Statements
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
Two overlapping circles diagram any categorical statement: shading marks a region empty; an X marks a region occupied.
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"No S are P" — shade the overlap. "Some S are P" — X in the overlap.
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Shading and X are different kinds of claims: emptiness versus existence. Never trade one for the other.