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Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °
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Posts by xueli
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#1
Re:
Exercises
»
Group Theory
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2010-10-19 14:25:57
xueli
im still not understand....
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