Set of symbols
Alphabet
Deduction system
Theory
Zermelo-Fraenkel set theory
Set
Binary cartesian set product
Binary relation
Map
Operation
N-operation
Binary operation
Enclosed binary operation
Groupoid
Semigroup
Standard N-operation
Indexed sum
Series
Harmonic complex series
Real harmonic series
Standard real harmonic series
Formulation 1
The standard real harmonic series is the D3708: Rational series \begin{equation} \{ 1, 2, 3, \ldots \} \to \mathbb{Q}, \quad N \mapsto \sum_{n = 1}^N \frac{1}{n} \end{equation}
Child definitions
» D5073: Euler-Mascheroni constant
Results
» R2954: Standard real harmonic series diverges