Top network posts

• 22 Students using ambiguous notation
• 20 Evaluate:: $ 2 \sum_{n=1}^\infty \frac{(-1)^{n+1}}{n+1}\left( 1 + \frac12 +\cdots + \frac 1n\right) $
• 20 Why do the less than symbol (<) and the greater than symbol (>) appear wrong as upside down exclamation (¡) or question mark (¿)?
• 18 Field-theoretic description of fixed field of central subgroups?
• 16 What is the Topology of point-wise convergence?
• 13 Formal proof for $(-1) \times (-1) = 1$
• 13 What are some measures of connectedness in graphs?
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