Lemma 6.5 . [01GE]

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Lemma 6.5.

If $\mathcal{L}\in\Pic(\mathcal{X}^{\prime})$ is nef then $E^{\prime}_{J}\cdot\left(\rho^{*}\theta_{\mathcal{X}}+\mu_{*}G\right)\cdot\mathcal{L}^{n-p-1}\geq 0$ .