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user38200
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Jan
20
awarded
Citizen Patrol
Jan
16
accepted
Cardinality of an ultraproduct
Jan
15
revised
Cardinality of an ultraproduct
added 211 characters in body
Jan
15
revised
Cardinality of an ultraproduct
added 69 characters in body
Jan
15
comment
Cardinality of an ultraproduct
I edited it, thanks.
Jan
15
revised
Cardinality of an ultraproduct
added 103 characters in body
Jan
15
revised
Cardinality of an ultraproduct
deleted 17 characters in body
Jan
15
asked
Cardinality of an ultraproduct
Dec
17
accepted
A question on models of set theory and Lebesgue measure
Dec
17
comment
A question on models of set theory and Lebesgue measure
Thanks, I suspected so but couldn't figure that the complexity of the definition of the set on nonmeasurable sets is $\Sigma_2$.
Dec
17
revised
A question on models of set theory and Lebesgue measure
added 23 characters in body
Dec
17
asked
A question on models of set theory and Lebesgue measure
Oct
15
accepted
Saturated models and definable substructures
Oct
14
asked
Saturated models and definable substructures
Sep
13
accepted
Is it consistent with ZFC (or ZF) that every definable family of sets has at least one definable member?
Sep
12
comment
Is it consistent with ZFC (or ZF) that every definable family of sets has at least one definable member?
Could you give other examples please?
Sep
12
asked
Is it consistent with ZFC (or ZF) that every definable family of sets has at least one definable member?
Aug
5
awarded
Yearling
Jun
12
accepted
Isomorphism of real closed fields
Jun
12
asked
Isomorphism of real closed fields
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