(Q371133)
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Wikipedia(7 entries)
- dewiki Inzidenzalgebra
- enwiki Incidence algebra
- eswiki Álgebra de incidencia
- itwiki Algebra di incidenza
- jawiki 隣接代数 (順序理論)
- kowiki 근접 대수
- ptwiki Álgebra de incidência
associative algebra used in combinatorics, a branch of mathematics
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