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2.
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ibid., 121.
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Poincaré, op. cit. (ref. 17), 52–55.
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BellE. T., The development of mathematics (New York, 1945), 295.
21.
HadamardJ., The psychology of invention in the mathematical field (New York, 1945).
22.
Poincaré, op. cit. (ref. 17), 27–28.
23.
ibid., 193.
24.
ibid., 31–32.
25.
ibid., 126.
26.
ibid., 52–55.
27.
BellE. T., Men of mathematics (London, 1937), ii, 597.
28.
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29.
Poincaré, op. cit. (ref. 17), 51.
30.
ibid., 61.
31.
ibid., 62.
32.
ibid., 62–63.
33.
GoodfieldJ., First you catch your unicorn (New York, 1980).
34.
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36.
J. Piaget's term. H. E. Gardner has made a similar suggestion to account for Mozart's description of himself as experiencing a complex musical piece all at once: Psychology today, xiii(1980), 18–27.