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Jul
2
awarded  Curious
Nov
27
comment Borel sets used in Model Theory
I´m a little bit confused about the sets that he sais are Borel, like the $E_1$, $E_2$ etc. Also when he proved that $D \subseteq D(F,T)$.
Nov
22
asked Borel sets used in Model Theory
Sep
5
asked An application of Descriptive set theory in Model theory.
Sep
3
comment Question about a defined function in D.Marker Model Theory book.
thanks a lot, everything seems much more clear.
Sep
3
accepted Question about a defined function in D.Marker Model Theory book.
Sep
3
asked Question about a defined function in D.Marker Model Theory book.
May
24
comment A decreasing sequence of stationary sets.
yes, sorry I meant $[A] \vee [B]=[A \cup B]$. Thanks!
May
23
comment A decreasing sequence of stationary sets.
How do I know that $\neg[D] \wedge [S_{\alpha}\prime]=[(\kappa∖D)\bigcap S_{\alpha}\prime]$ ?, and it happens also with $[A]\wedge [B]=[A \bigcup B]$?
May
22
accepted about a club set
May
22
asked about a club set
May
20
awarded  Scholar
May
20
accepted A decreasing sequence of stationary sets.
May
18
awarded  Student
May
18
asked A decreasing sequence of stationary sets.