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solution_set [2016/05/19 21:15] nikolaj |
solution_set [2016/05/20 08:58] nikolaj |
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- | $S=f^{-1}(\{y_0\})$ | + | $S=f^{-1}(\{y_0\})$ where $f^{-1}:{\mathcal P}Y\to{\mathcal P}X$. |
=== Reference === | === Reference === |