Philosophy Dictionary of ArgumentsHome
| |||
|
| |||
| Ordinal numbers: ordinals indicate the position of elements within a sequence (expressed by "first", "second", ...). In contrast, cardinal numbers (expressed by "one," two ", ...) indicate the size (cardinality) of sets. See also numbers, sets, order, well-ordering._____________Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments. | |||
| Author | Concept | Summary/Quotes | Sources |
|---|---|---|---|
|
John von Neumann on Ordinal Numbers - Dictionary of Arguments
Thiel I 205 Ordinal numbers/Neumann/Thiel: Today, ordinal numbers are not only introduced differently than in Cantor and Dedekind, but are also defined differently. >Numbers. John v. Neumann: Axiomatic construction of the set theory. In the foundation of logic certain formulas are recognized as "excellent formulas". >Axioms, >Axiom systems, >Set theory, >Sets. I 206 The rules allow us to form unreservedly new sentential connective-logical propositional schemas, in which we can recognize excellent ones and not a. But this does not provide us with a real overview of the sentences of the sentential connectives logic, nor a systematic insight into their connections. We must distinguish between the logical framework and the sentences themselves in an axiomatic structure. >Logic, >Statements. I 207 Axiomatization allows a potentially infinite set of sentences by representing them as a conclusion set from finitely many sentences. >Axiomatization, cf. >Are there infinitely many possible sentences?/Researchgate._____________Explanation of symbols: Roman numerals indicate the source, arabic numerals indicate the page number. The corresponding books are indicated on the right hand side. ((s)…): Comment by the sender of the contribution. Translations: Dictionary of Arguments The note [Concept/Author], [Author1]Vs[Author2] or [Author]Vs[term] resp. "problem:"/"solution:", "old:"/"new:" and "thesis:" is an addition from the Dictionary of Arguments. If a German edition is specified, the page numbers refer to this edition. |
NeumJ I J. v. Neumann The Computer and the Brain New Haven 2012 T I Chr. Thiel Philosophie und Mathematik Darmstadt 1995 |
||
> Counter arguments against Neumann
> Counter arguments in relation to Ordinal Numbers
