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Meaning of vexillary permutation | Babel Free

Noun CEFR B2

Definitions

A permutation μ of the positive integers containing no subpermutation isomorphic to the permutation (2143); in other words, there do not exist four numbers i < j < k < l with μ(j) < μ(i) < μ(l) < μ(k).

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

vexillation vexillator vexilliferid vexillographer vexillography vexillolatry

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