My question is really basic. I was reading on the Massey's Book of algebraic topology on the connected sum of the torus and real projective plane, I felt a little confused his explanation. Someone can explain to me Or at least give a reference where I can find this calculation?
Connected sum of a torus and a real projective plane
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algebraic-topology
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0Calculation of *what*? – 2012-01-20
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0Please summarize what Massey did in his book. – 2012-01-22