Hansel's Lemma for an arbitrary ring is on pg. 117 of The Arithmetic of Elliptic Curves by Joseph H. Silverman:
Here, when $I＝R$, $R$ is automatically zero ring, could you tell me why then Hensel's Lemma holds?
Thank you for your help.
2026-03-25 09:33:49.1774431229
Hensel's Lemma for zero ring
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