User contributions for 2001:1C08:283:5100:CF5:A38B:FB3E:2F0E
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17 February 2025
- 12:4012:40, 17 February 2025 diff hist +5,202 N Classifying space for SO(n) →Cohomology ring: The statement that this computation holds for all rings of characteristic 0 is false; for example the integral cohomology is much more complicated. current