Lemma 98.27.9. In Situation 98.27.1 assume X' \to S and W \to S are separated. Then the diagonal \Delta : F \to F \times F is representable by closed immersions.
Lemma 98.27.9. In Situation 98.27.1 assume X' \to S and W \to S are separated. Then the diagonal \Delta : F \to F \times F is representable by closed immersions.
Proof. Combine Lemma 98.27.8 with the discussion in Remark 98.27.7. \square
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