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四色定理
1. four-color theorem; four-color map theoremMathematics
2. Four color theoremIn mathematics, the four color theorem, or the four color map theorem states that, given any separation of a plane into contiguous regions, producing a figure called a map, no more than four colors are required to color the regions of the map so that no two adjacent regions have the same color. Two regions are called adjacent if they share a common boundary that is not a corner, where corners are the points shared by three or more regions.
Read “Four color theorem” on English Wikipedia
Read “四色定理” on Japanese Wikipedia
Read “Four color theorem” on DBpedia
Read “Four color theorem” on English Wikipedia
Read “四色定理” on Japanese Wikipedia
Read “Four color theorem” on DBpedia
四色定理 【ししょくていり】
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