English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

On Cuesta-Conway numbers as an extension of Cantor's ordinals: A shortintroduction to surreal numbers. The class of Cuesta-Conway numbers, thesurreal numbers, can be defined simply, starting from their normal forms(families of exponentials indexed by ordinals), as an extension of the realsand ordinals from which easily follow addition, multiplication, and total orderrelation. A construction of this class yields an increasing sequence ofreal-closed fields, preliminary, so to say. A complete proof is also given thewell-known result that the class of surreal numbers is a totally ordered,commutative, real-closed field!

Les nombres de Cuesta-Conway comme extension des ordinaux de Cantor: une courte introduction aux nombres surr\'eels