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Meaning of four color theorem | Babel Free

Noun CEFR C1

Definitions

A theorem stating 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 so that no two adjacent regions have the same color (adjacent being defined as two regions sharing a boundary, not counting corners, in which three or more regions share a boundary).

Equivalents

CEFR level

C1
Advanced
This word is part of the CEFR C1 vocabulary — advanced level.
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