Examlex
Draw a cubic graph with 6 vertices that is not isomorphic to K3,3, or else prove that there are none.
Consumer Surplus
The difference between the maximum price a consumer is willing to pay for a good or service and the market price they actually pay.
Producer Surplus
The difference between the amount producers are willing to sell a product for and the amount they actually receive, representing a measure of producer welfare.
Ruby
A precious gemstone known for its vibrant red color, commonly used in jewelry and as an industrial abrasive.
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