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Quote by Kenneth Appel

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Kenneth Appel
Kenneth Appel

Kenneth Appel was a prominent mathematician known for his significant contributions to the fields of graph theory and combinatorics. He is best known for his proof of the four-color theorem, a major breakthrough in graph theory. more

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“However the machine would permit us to test the hypothesis for any special value of n. We could carry out such tests for a sequence of consecutive values n=2,3,.. up to, say, n=100. If the result of at least one test were negative, the hypothesis would prove to be false; otherwise our confidence in the hypothesis would increase, and we should feel encouraged to attempt establishing the hypothesis, instead of trying to construct a counterexample.”

“When I was in graduate school in Princeton, I was told to take three courses. One of them to work on really hard, another to work on moderately hard, and the third one just to absorb. In my case, I never showed up to the latter class, taught by Robert Gunning, on Several Complex Variables. Several Complex Variables (Cn) was starting to get vary fashionable then, but I decided to specialize in n=1/2.”