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Commit 2023-06-10 17:01 e1e7190e

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feat(data/polynomial/div): add X_sub_C_dvd_sub_C_eval (#19120)

Estimated changes

Modified src/data/polynomial/div.lean

added theorem polynomial.X_sub_C_dvd_sub_C_eval

modified theorem polynomial.dvd_iff_is_root

added theorem polynomial.mem_span_C_X_sub_C_X_sub_C_iff_eval_eval_eq_zero