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Ehresmann's lemma: Revision history


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  • curprev 18:4218:42, 8 January 2022 81.227.76.13 talk 1,082 bytes +11 I completely disagree with last edit of Tgoodwil user. Surjectivity is essential. Proposition on p154 in original work of Ehresmann says "et soit p une application deux fois différentiable de E sur B", "E sur B" translates "E onto B" which means surjective map. Also think about map f: S^1 → R, f(p)=0, this is definitel proper smooth submersion, and it's definitely not a locally trivial fiber bundle. undo Tag: Manual revert
  • curprev 18:4218:42, 8 January 2022 81.227.76.13 talk 1,071 bytes −11 Undid revision 1064505609 by 81.227.76.13 (talk) misprint in comment undo Tags: Undo Reverted
  • curprev 18:3818:38, 8 January 2022 81.227.76.13 talk 1,082 bytes +11 I completely disagree with last edit of Tgoodwil user. Surjectivity is essential. Proposition on p154 in original work of Ehresmann says "et soit p une application deux fois différentiable de E sur B", "E sur B" translates "E onto B" which means surjective map. Also think about map f: S^1 → R, f(p)=0, this is definitely surjective proper smooth map, and it's definitely not a locally trivial fiber bundle. undo Tag: Reverted

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