Subject: P.S.

From: "Rostyslav Kozhan" <[email-masked]>
Date: Thu, 15 Feb 2007 16:46:21 -0800

Rupert,

And another problem: p.249, the proof of 3.37, paragraph two, there is the
sentence "We can do this by using the isomorphism H_i(M, Z_2)=h^i(M, Z_2)" -
how this isomorphism can be justified?

R.