/sci/ - Science & Math » Thread #13928600

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Anonymous Sun 05 Dec 23:20:55 2021 No.13928600 View Reply Original Report

Quoted By: >>13928607 >>13928617 >>13930122

How do I determine if something is a set or not? Specifically, if it's a set or a proper class?

Anonymous

Anonymous Sun 05 Dec 2021 23:22:29 No.13928607 Report

Quoted By: >>13930120

>>13928600
Search it for crocodiles.

Anonymous

Anonymous Sun 05 Dec 2021 23:23:52 No.13928617 Report

Quoted By: >>13928622

>>13928600
Just apply the definition of a set.

Anonymous

Anonymous Sun 05 Dec 2021 23:24:53 No.13928622 Report

Quoted By: >>13929844

>>13928617
And what's the definition of a set?

Anonymous

Anonymous Mon 06 Dec 2021 07:02:02 No.13929844 Report

Quoted By: >>13930113

>>13928622
zermelo frenkel axioms
another definition I like to use.
A set is either empty or contains at least one set

Anonymous

Anonymous Mon 06 Dec 2021 08:48:04 No.13930113 Report

Quoted By:

>>13929844
How do you use those axioms to determine if something is a set or not?

Anonymous

Anonymous Mon 06 Dec 2021 08:52:31 No.13930120 Report

Quoted By:

>>13928607
I think I might be one of the few who got that reference

Anonymous

Anonymous Mon 06 Dec 2021 08:53:32 No.13930122 Report

Quoted By: >>13930130

>>13928600
Can’t sets contain whatever you want? Isn’t there a set for everything?

Anonymous

Anonymous Mon 06 Dec 2021 08:55:55 No.13930130 Report

Quoted By:

>>13930122
No. Apparently the collection of all ordinals is not a set, nor is the collection of all groups.

Anonymous

Anonymous Mon 06 Dec 2021 11:27:47 No.13930447 Report

Quoted By:

Bump

Anonymous

Anonymous Mon 06 Dec 2021 16:34:51 No.13931331 Report

Quoted By:

Nobody knows? Where are the mathematicians?

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