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Nov 7, 2022 at 8:56 comment added John Rognes @DevendraSinghRana Please consult the references I gave, or a textbook, such as Husemoller's "Fibre Bundles" or Hatcher's "Algebraic topology".
Nov 7, 2022 at 6:59 comment added Devendra Singh Rana Can you explain " a section up to homotopy". @JohnRognes
Nov 5, 2022 at 8:19 vote accept Devendra Singh Rana
Nov 4, 2022 at 23:08 history edited John Rognes CC BY-SA 4.0
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Nov 4, 2022 at 19:05 history answered John Rognes CC BY-SA 4.0