Homeomorphic topological spaces have isomorphic fundamental groups/Statement

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Statement

Let (X,J) and (Y,K) be homeomorphic topological spaces, let pX be given (this will be the base point of the fundamental group π1(X,p)) and let φ:XY be that homeomorphism. Then: [1]:

That is to say:

  • (XφY)(π1(X,p)φπ1(Y,φ(p)))

References

  1. Jump up Introduction to Topological Manifolds - John M. Lee