| 2×2=4 | This user is a beginner mathematician. |
| a²+b²=c² | This user is an intermediate mathematician. |
 | This user is an advanced mathematician. |
| This user is an expert mathematician. |
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| 2×2=4 | This user is a beginner mathematician. |
| a²+b²=c² | This user is an intermediate mathematician. |
| This user is an advanced mathematician. |
 | This user is an expert mathematician. |