Using an integral construction based on symmetrized polynomials, we obtain a new estimate for the irrationality measure of the number In 7. This estimate improves a result due to Wu, which was proved in 2002.

中文翻译：

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ln 7 的非理性测度

使用基于对称多项式的积分构造，我们获得了对数 In 7 的非理性测度的新估计。该估计改进了 Wu 在 2002 年证明的结果。