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单词 four-color problem
释义

WordReference Random House Unabridged Dictionary of American English © 2024
four-color prob′lem  (fôrkulər, fōr-),USA pronunciation [Math.]
  1. Mathematicsthe 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-color the′orem. 
  • 1875–80

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更新时间:2025/7/23 10:35:44