the hyperbolic plane is complete
90110
Hyperbolic metric geodesically complete
56646
Arithmetic progression topology
157296
Homeomorphism between the Unit Disc and Complex Plane
107637
Intuitive meaning of Globally Hyperbolic
135855
Prove the group of all real translations and all glide reflections with axis$R$ is isomorphic to $\{1,-1\}\times \mathbb R$
16517
Arcwise connected part of $\mathbb R^2$
67106
Projection on the hyperplane $H: \sum x_i=0$
32910
Completion and algebraic closure commutable
74312
If Y is complete then B(X,Y) is complete
15482
Paths integrals in the complex plane
125610
Space of bounded continuous functions is complete
27600
Gödel's (in)completeness theorems and the axiomatization of Euclidean geometry
108366
How to create an infinite plane in cycles?
114061
Construct such $d$ that $(\mathbb{R} \setminus \mathbb{Z}, d)$ is complete metric space
51048
How can I show that if the second fundamental form of a surface is identically equal to zero, then the surface is a plane?
24976
An uniformly charged infinite surface plane
52316
Geodesics and Curves on a Plane