Cesàro's Theorem application: what is wrong?
46775
If $\sigma_n=\frac{s_1+s_2+\cdots+s_n}{n}$ then $\operatorname{{lim sup}}\sigma_n \leq \operatorname{lim sup} s_n$
155655
Applying MVT and IVT (?) to show something about f'''? (edit: actually, Taylor's Theorem using Lagrange remainder)
128843
Rolle's Theorem Contradiction
65759
A possible incorrect application of Law of Large numbers
116351
Is Cesaro convergence still weaker in measure?
94058
Applying the Berry-Esseen theorem to non-identically distributed summands
52774
Computing an infinite sum using the Residue theorem
46250
Fallacy limit problem - Where is the mistake?
94627
What's wrong with this derivation that $i\hbar = 0$?
31255
Bounded sequence with divergent Cesaro means
139661
trouble applying Sylow's theorems
48304
Is the Cesàro summation of a sequence divergent to infinity divergent?
157179
Cesaro Mean of Sequences - Convergence
34938
Recalling a theorem
116013
Problem applying L'Hopitals rule.
10013
A problem that I'm not sure whether to use Weierstrass Approximation Theorem
65888
A counterexample to theorem about orthogonal projection