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Anna

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69 reputation
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5 Questions

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4
Rigid motions of $\mathbf R^2$ form a group
3
Distance is independent of coordinates
2
Isometries are determined by 3 points
2
Slope is independent of coordinates
1
Empty intersection and empty union

69 Reputation

+5 Empty intersection and empty union
+10 Isometries are determined by 3 points
+5 Slope is independent of coordinates
+5 Rigid motions of $\mathbf R^2$ form a group
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linear-algebra × 4
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real-analysis
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elementary-set-theory

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