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15
Math.TechQA.Club
2017-12-19 01:50:58
66
Views
Finding $\omega$ with an arithmetic series
Published on
19 Dec 2017 - 1:50
#arithmetic
#infinity
#ordinals
221
Views
Interlacing addition of ordinals
Published on
27 Mar 2026 - 10:46
#set-theory
#order-theory
#ordinals
#well-orders
423
Views
Could Reinhardt cardinals could exist even if all cardinals below it were well-orderable?
Published on
29 Mar 2026 - 22:41
#set-theory
#ordinals
#large-cardinals
300
Views
Question on proof of Goodstein's Theorem
Published on
25 Dec 2017 - 17:56
#number-theory
#set-theory
#ordinals
102
Views
Which is the set for transfinite ordinals $\omega$?
Published on
27 Dec 2017 - 16:48
#elementary-set-theory
#ordinals
282
Views
Ordinal Numbers beyond $\omega$
Published on
01 Jan 2018 - 19:02
#ordinals
304
Views
Computing ordinal exponentiation in Cantor normal form
Published on
02 Jan 2018 - 1:35
#algorithms
#set-theory
#ordinals
2.2k
Views
Definition of the generating set of a ring
Published on
06 Jan 2018 - 1:46
#abstract-algebra
#reference-request
#ring-theory
#ordinals
556
Views
What uncountable ordinals live in the long line?
Published on
27 Mar 2026 - 10:46
#general-topology
#ordinals
#well-orders
139
Views
Modern theories of ordinals independent of set theory?
Published on
12 Jan 2018 - 0:31
#reference-request
#category-theory
#order-theory
#ordinals
1.4k
Views
Uncountable ordinals without power set axiom
Published on
16 Sep 2010 - 11:51
#set-theory
#ordinals
1.5k
Views
Order-isomorphic with a subset iff order-isomorphic with an initial segment
Published on
08 Nov 2010 - 20:44
#set-theory
#ordinals
5.7k
Views
Simple example of uncountable ordinal
Published on
27 Dec 2010 - 13:41
#set-theory
#cardinals
#ordinals
1.4k
Views
Non-existence of a surjection $\aleph_n \to \aleph_{n+1}$, without the axiom of choice
Published on
02 Jan 2011 - 8:36
#set-theory
#cardinals
#axiom-of-choice
#ordinals
5.5k
Views
The cardinality of a countable union of countable sets, without the axiom of choice
Published on
03 Jan 2011 - 16:32
#set-theory
#cardinals
#axiom-of-choice
#ordinals
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