In (2.9) Lemma, how to show the existence of $\alpha_1,\cdots,\alpha_n$ as a basis of $L|K$ which is contained in $B$?
2026-03-29 21:39:17.1774820357
How to show the existence of $\alpha_1,\cdots,\alpha_n$ as a basis of $L|K$ which is contained in $B$?
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Let $\beta_1, \cdots,\beta_n$ be any basis of $L|K$, we can use this method to get $\alpha_1,\cdots, \alpha_n$ as basis of $L|K$ which is contained in $B$.