| 单词 | four-color problem |
| 释义 | four-color problem[ fawr-kuhl-er, fohr- ] / ˈfɔrˈkʌl ər, ˈfoʊr- / noun 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-color theorem. Origin of four-color problemFirst recorded in 1875–80 Words nearby four-color problemfour-by-two, four-channel, fourché, fourchette, four-color, four-color problem, four-colour, four-corners, four-cycle, four-deal bridge, four-dimensional Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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