MATH
Login Or Sign up

List Question

15
353
Views

Is any subset of the open ordinal space $[0,\Omega)$ $G_\delta$?

Published on
#general-topology #set-theory #ordinals
261
Views

What is the cardinality of the open ordinal space $[0,\Omega)$ if we remove neighborhoods of each limit ordinal?

Published on
#general-topology #set-theory #ordinals
450
Views

Prove that $\omega + \omega_1 = \omega \cdot \omega_1 = \omega^{\omega_1} = \omega_1$

Published on
#set-theory #ordinals
132
Views

Ordering ordinals by size

Published on
#elementary-set-theory #ordinals
613
Views

How to prove by induction that the set of all natural numbers is an ordinal

Published on
#set-theory #ordinals
153
Views

Set of Cardinals

Published on
#elementary-set-theory #cardinals #ordinals
989
Views

Countable subset bounded in uncountable set

Published on
#elementary-set-theory #ordinals
142
Views

Is there a difference between the order type of Q·ω and Q·Q?

Published on
#set-theory #ordinals
169
Views

Ordinal numbers and onto function

Published on
#elementary-set-theory #ordinals
87
Views

Prove: $2^{\aleph_0}\not=\aleph_{\epsilon_0}$

Published on
#elementary-set-theory #cardinals #ordinals
496
Views

Initial Segment Order Isomorphic to the Ordinal Numbers

Published on
#set-theory #proof-writing #ordinals #transfinite-recursion
234
Views

Transitive sets and the Mostowski collapse

Published on
#elementary-set-theory #ordinals
584
Views

Axiom of regularity and ordinal ranks

Published on
#elementary-set-theory #proof-verification #ordinals #axioms
594
Views

Order-preserving injections of ordinals into $[0,1]$

Published on
#set-theory #order-theory #ordinals
95
Views

Equivalence between two definitions of successor ordinal

Published on
#elementary-set-theory #ordinals

Trending Questions

Popular # Hahtags

second-order-logic numerical-methods puzzle logic probability number-theory winding-number real-analysis integration calculus complex-analysis sequences-and-series proof-writing set-theory functions homotopy-theory elementary-number-theory ordinary-differential-equations circles derivatives game-theory definite-integrals elementary-set-theory limits multivariable-calculus geometry algebraic-number-theory proof-verification partial-derivative algebra-precalculus

Popular Questions

Copyright © 2021 JogjaFile Inc.