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indexed_union [2013/09/14 16:57] nikolaj |
indexed_union [2013/09/15 00:27] nikolaj |
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| ==== Discussion ==== | ==== Discussion ==== | ||
| + | For $f=\mathrm{id}$, the set is indexing itself and the indexed union is just the arbitrary union $\bigcup_{i\in I} X_i = \bigcup X$. | ||
| ==== Parents ==== | ==== Parents ==== | ||
| === Refinement of === | === Refinement of === | ||
