Centuries: 9th century - 10th century - 11th century
Decades: 850s 860s 870s 880s 890s - 900s - 910s 920s 930s 940s 950s
Years: 896 897 898 899 900 - 901 - 902 903 904 905 906
... purely internal to mathematics, because the structures may provide, for instance, a unifying generalization for several subfields, or a helpful tool for common ...
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