Real Analysis — Ordered Field & Completeness

Mathematics Calculus & Analysis Cite
Primary: Bolzano, Cauchy, Dedekind
Publication: Completeness of the reals
Year: 19th c.
URL: Wikipedia

Description

Ordered field: field with total order compatible with + and ·. Completeness: every nonempty bounded above set has supremum. Archimedean property: ℕ unbounded in ℝ.

Dependency Flowchart

Note: Arrows mean "depends on".

graph TD A1["A1 Field axioms\nR + ·"] A2["A2 Order axioms\ntotal order, compat"] D1["Def: Bounded above\n∃M ∀x x≤M"] D2["Def: Supremum\nleast upper bound"] D3["Def: Completeness\nsup exists"] T1["Thm: Archimedean\n∀ε>0 ∃n nε>1"] T2["Thm: Q dense in R"] A1 --> D1 A2 --> D1 D1 --> D2 D2 --> D3 D3 --> T1 D3 --> T2 classDef axiom fill:#ff6b6b,color:#fff,stroke:#c0392b classDef definition fill:#b197fc,color:#fff,stroke:#9775fa classDef theorem fill:#51cf66,color:#fff,stroke:#40c057 class A1,A2 axiom class D1,D2,D3 definition class T1,T2 theorem

Color Scheme

Red
Axioms
Blue
Definitions
Teal
Theorems

Process Statistics

  • Nodes: 7
  • Edges: 7
  • Axioms: 2
  • Definitions: 3
  • Theorems: 2