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单词
four-color problem
释义
WordReference Random House Unabridged Dictionary of American English © 2024
four
′
-col
′
or prob′lem
(fôr
′
kul
′
ər, fōr
′
-),
USA pronunciation
[
Math.
]
Mathematics
the problem, solved in 1976, of proving the theorem that any geographic map can be colored using only four colors so that no connected countries with a common boundary are colored the same color.
Also called
four
′
-col
′
or the′orem.
1875–80
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更新时间:2025/11/20 6:25:14