Baby Rudin exercise 2.19(d)
84791
Is every connected metric space with at least two points uncountable?
61671
Discrete Math: Writing Proofs
7865
Complete Newbie: Axiom of Foundation Exercise
130464
Exercise 2.11 Atiyah-Macdonald
148139
Exercise $1.8$ of chapter one in Hartshorne.
72719
Baby Rudin Theorem 1.20 (b) Proof
44653
$(\int f_1d\mu)^2+\cdots+(\int f_nd\mu)^2\leq(\int \sqrt{f_1^2+\cdots+f_n^2}d\mu)^2$
70394
Prove that $a * b$ is a group (Hungerford, 2nd ed., sec $7.2$, Exercise $22$)
100181
Series convergence proof review (Baby Rudin)
62484
Proving Hartshorne's Exercise I-1.9 by using exercise I-1.8
90828
Help proving exercise on sequences in Bartle's Elements
130253
Differentiating $\mbox{tr} (ABA^TC)$ w.r.t. $A$
73287
Project Euler Question 14 (Collatz Problem)
147275
Finding a Eulerian Tour
157213
Application of Luca's theorem
7368
Infinite series of derivatives of position when starting from rest
74515
Elementary proof of claim in Baby Rudin 3.31