# Ordinal number

There have been 1 completed talk tagged with **ordinal number**.

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## Completed Talks

### Ordinals

Delivered by Eddie Onochie on Friday February 10, 2017

In this talk we will talk about ordinals and the philosophy of infinity. We will define what ordinals are and how to construct them. We will also define transfinite recursion and use the axiom of choice to give meaning to the "cardinality" of a set.