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# Red spring orange yellow green f summer blue indigo

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Unformatted text preview: nction f: AB can be one-to-one. Red Spring Orange Yellow Green f Summer Blue Indigo • Argument by contradiction Fall Winter – If the conclusion is false, each pigeonhole contains at most one pigeon, and, in this case, we thi can account for at most k pigeons. Since there are n pigeons and n>k, we have a contradiction. Violet CS204 Discrete Math (Fall 2009) [email protected] 5 CS204 Discrete Math (Fall 2009) [email protected] 6 Pigeonhole Principle • If f is a function from a finite set X to a finite set Y and |X| > |Y|, then f(x1) = f...
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## This note was uploaded on 04/15/2013 for the course MAS 223 taught by Professor Shin during the Spring '13 term at Korea Advanced Institute of Science and Technology.

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