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Instructions
List of learning objectives and exercises as
Select an exercise below and then click "Get it".
Basic p1 p2 pm cm p2gg p4gm
Advanced p6 c2mm
More Plane Groups p3 pg p4 p3m1 p31m p2mg p2mm p4mm p6mm
Practice h1 h2 h3 h4 Trees
Harder O h5 Spiders
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