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world:de-finetti [2026/02/07 10:34]
rdouc
world:de-finetti [2026/02/07 12:44] (current)
rdouc
Line 8: Line 8:
 <WRAP center round tip 80%> <WRAP center round tip 80%>
 **De Finetti'​s Theorem:​**  ​ **De Finetti'​s Theorem:​**  ​
-Let $(X_i)_{i\in\mathbb{N}}$ be a family of **exchangeable random elements** taking ​balues ​on a measurable space $(\mathsf{X},​\mathcal{X})$. Then, there exists a $\sigma$-field $\mathcal{G}_\infty$ such that, **conditionally on $\mathcal{G}_\infty$**,​ the random variables $(X_i)_{i\in\mathbb{N}}$ are **independent and identically distributed (i.i.d.)**.+Let $(X_i)_{i\in\mathbb{N}}$ be a family of **exchangeable random elements** taking ​values ​on a measurable space $(\mathsf{X},​\mathcal{X})$. Then, there exists a $\sigma$-field $\mathcal{G}_\infty$ such that, **conditionally on $\mathcal{G}_\infty$**,​ the random variables $(X_i)_{i\in\mathbb{N}}$ are **independent and identically distributed (i.i.d.)**.
  
 </​WRAP>​ </​WRAP>​
world/de-finetti.txt · Last modified: 2026/02/07 12:44 by rdouc