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• Notes:Covering spaces
  ** Let {{M|p:E\rightarrow X}} be [[continuous map]], we say {{M|U}} open in {{M|X}} is ''evenly covered'' by {{M|p}} if: ...1}(U)}} equals a union of disjoint open sets of {{M|E}} such that each one of these disjoint open sets is [[homeomorphic]] onto {{M|U}} if you restrict {
  3 KB (658 words) - 19:20, 25 February 2017
• Unique lifting property
  ...MJML}}^-<ref group="Note">Lee defines covering maps and spaces a little differently. He requires that for {{link|evenly covered|topology}} t But Gamelin and Green do not do this, so we can have coverings of not-connected neighbourhoods. It's worth investigating but it isn't critica
  13 KB (2,510 words) - 16:23, 2 March 2017