Concept explainers
Logging cardinality. The function graphed here is the logarithmic function
Notice how the y-axis is a vertical asymptote, that is, the graph gets closer and closer to the y-axis but never touches it. Use this graph to show that the collection of all positive real numbers has the same cardinality as the collection of all real numbers.
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EBK THE HEART OF MATHEMATICS: AN INVITA
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