Roshterian: Difference between revisions
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KATE: Yes, it is unique, Mr. Cooperman, up to an element in the image of f, all right? So we’ve pulled it back to a fixed b here and then you take \beta of b, which takes you to 0 in C’, by the commutivity (should be commutativity) of the diagram. It is therefore in the kernel of the map g’, hence is an image of f’ by the exactness of the lower sequence… | KATE: Yes, it is unique, Mr. Cooperman, up to an element in the image of f, all right? So we’ve pulled it back to a fixed b here and then you take \beta of b, which takes you to 0 in C’, by the commutivity (should be commutativity) of the diagram. It is therefore in the kernel of the map g’, hence is an image of f’ by the exactness of the lower sequence… | ||
Weipi. | |||
COOPERMAN: No. | COOPERMAN: No. | ||