User:Alec/Bitchin

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Revision as of 22:23, 14 February 2017 by Alec (Talk | contribs) (Fleshed out)

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Dispute

Set up
If f is say n:Cn(X)Cn1(Y) in a chain complex (found in this case in singular homology theory) it is claimed that for any topological subspace of X that f induces a map:
  • f:Cn(X)Cn(A)Cn1(X)Cn1(A)

Specifically it is claimed that:

  • Ker(π1)Ker(f)

But I don't yet see how that helps. Alec (talk) 22:23, 14 February 2017 (UTC)