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4 cards from this section. Quick, good the night before a test.
What is a uniqueness proof?
Think of examples where only one solution works.
What does a counterexample demonstrate?
Recall a false mathematical statement you've seen.
What is a uniqueness proof?
Think about how many examples would satisfy the condition.
True or False: A counterexample proves a statement can be true.
Consider what it means to prove something 'wrong'.
Prove that if x is an irrational number, then x² is also irrational.
Think about the definition of rationality.
In a system of equations, show that for certain coefficients, a unique solution exists.
Recall the properties of matrices and determinants.
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