Abstract
If you were asked how many people are in your class, you would do the natural thing and count them. Thinking about this carefully, we see that what you are doing is assigning each person in the room one and only one number. If we asked whether or not there are more people in this class than were in your high school geometry class, you could certainly answer that question by comparing the two numbers.
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© 2011 Springer Science+Business Media, LLC
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Daepp, U., Gorkin, P. (2011). Equivalent Sets. In: Reading, Writing, and Proving. Undergraduate Texts in Mathematics. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-9479-0_21
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DOI: https://doi.org/10.1007/978-1-4419-9479-0_21
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Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4419-9478-3
Online ISBN: 978-1-4419-9479-0
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