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2 cards from this section. Quick, good the night before a test.
What is a combinatorial proof?
Think about how we count objects.
Give an example of a combinatorial identity.
Consider how combinations link together.
What is the goal of a combinatorial proof?
Remember that simplification is not involved!
True or False: In combinatorial proofs, you often simplify the expressions involved.
Focus on the nature of proofs we've discussed.
Prove using a combinatorial proof technique. What are the two perspectives?
Reflect upon how could view the same set in two different ways.
Use Pascal's identity to demonstrate a relationship involving . What are the distinct cases?
Consider the choices available based on including or excluding one specified element.
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