2
01 - Cantor's Problem of the Cardinal Number of the Continuum
3
02 - The Compatibility of the Arithmetical Axioms
4
03 - The Equality of the Volumes of Two Tetrahedra of Equal Bases and Equal Altitudes
5
04 - Problem of the Straight Line as the Shortest Distance Between Two Points
6
05 - Lie's Concept of a Continuous Group of Transformations Without the Assumption of the Differentiability of the Functions Defining the Group
7
06 - Mathematical Treatment of the Axioms of Physics
8
07 - Irrationality and Transcendence of Certain Numbers
9
08 - Problems of Prime Numbers
11
10 - Extension of Kronecker's Theorem of Abelian Fields to Any Algebraic Realm of Rationality
12
11 - Impossibility of the Solution of the General Equation of the 7th Degree by Means of Functions of Only Two Arguments
13
12 - Proof of the Finiteness of Certain Complete Systems of Functions
15
14 - Expression of Definite Forms by Squares
16
15 - Building up of Space from Congruent Polyhedra
17
16 - Are the Solutions of Regular Problems in the Calculus of Variations Always Necessarily Analytic?
18
17 - The General Problem of Boundary Values
19
18 - Proof of the Existence of Linear Differential Equations Having a Prescribed Monodromic Group
20
19 - Uniformization of Analytic Relations by Means of Automorphic Functions
21
20 - Problem 23 and Conclusion