Timeline for What are the advantages of phrasing results in terms of exact sequences and commutative diagrams?
Current License: CC BY-SA 2.5
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| Apr 19, 2010 at 13:31 | comment | added | Steven Gubkin | Any time you try to give a map out of a quotient type object by defining the map on equivalence relations you also have to check that your map is well defined. Checking that maps out of tensor products are well defined without using the universal mapping property is TERRIBLE for all but the simplest cases. | |
| Apr 19, 2010 at 10:51 | history | answered | Don Stanley | CC BY-SA 2.5 |