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Added to Eilenberg-MacLane space a section Cohomology – Of EM spaces with a minimum of pointers and the statement of the rational cohomology ring of K(ℤ,n).
I have added mentioning of the model of EM-spaces K(A,n) as the “reduced A-linearization of the n-sphere” A[Sn]* (for countable A, at least), here.
(That’s the model of EM-spaces which lends itself to the definition of the EM-spectrum as an orthogonal spectrum)
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