| P460 | said to be the same as | ... | Q12507 (sphere) | sphere |
| P460 | said to be the same as | ... | Q825857 (Riemann sphere) | Riemann sphere |
| P279 | subclass of | ... | Q764115 (projective line) | projective line |
| P279 | subclass of | ... | Q2538404 (complex projective space) | complex projective space |
| P279 | subclass of | ... | Q5155294 (compact Riemann surface) | compact Riemann surface |
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log id: 4618390