Definition 22.25.4. Let R be a ring. Let \mathcal{A} be a graded category over R. A direct sum (x, y, z, i, j, p, q) in \mathcal{A} (notation as in Homology, Remark 12.3.6) is a graded direct sum if i, j, p, q are homogeneous of degree 0.
Definition 22.25.4. Let R be a ring. Let \mathcal{A} be a graded category over R. A direct sum (x, y, z, i, j, p, q) in \mathcal{A} (notation as in Homology, Remark 12.3.6) is a graded direct sum if i, j, p, q are homogeneous of degree 0.
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