Abstract
Consider the set of digits 1,2,3,4,5. Taking the elements two at a time, we have 10 subsets: 1,2, 1,3, 1,4, 1,5, 2,3, 2,4, 2,5, 3,4, 3,5, 4,5. This is quite obvious, and yet the forms that result when you really look at these pairs and try to make connections between them can be surprising.
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References
Colbourn, C., and Dinitz, J. 2007. Handbook of combinatorial designs. Boca Raton: CRC Press
Fano, G. 1892. Sui postulari fondamenti della geometria projettiva. Giornale di Mathematiche 30: 106–132.
Kaski, P., and Östergård, P. 2006. Classification algorithms for codes and designs. Berlin: Springer
Reye, T. 1876. Geometrie der lage I. Hannover: Rümpler.
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Johnson, T., Jedrzejewski, F. (2014). Subsets. In: Looking at Numbers. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-0554-4_3
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DOI: https://doi.org/10.1007/978-3-0348-0554-4_3
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