MATH
Login Or Sign up

List Question

15
115
Views

Problem about stationary set

Published on
#set-theory #ordinals
257
Views

A certain subset of a well-ordered uncountable set empty or not?

Published on
#set-theory #order-theory #ordinals #well-orders
151
Views

If $\lambda$ is a limit ordinal , $0\le n < \omega$, $1<m<\omega$ then prove the following

Published on
#proof-verification #set-theory #ordinals #transfinite-induction
212
Views

Proof involving transfinite induction on ordinals

Published on
#proof-verification #set-theory #ordinals
513
Views

Ordinal is limit iff it is a multiple of omega

Published on
#set-theory #ordinals #transfinite-induction
169
Views

Multiplication on ordinal number

Published on
#set-theory #ordinals
129
Views

Is the intersection of a set of cardinals contained in the set?

Published on
#elementary-set-theory #cardinals #ordinals
474
Views

Ordinal comparison trichotomy

Published on
#set-theory #order-theory #ordinals #well-orders
194
Views

Better bounds on my ordinal hyperoperators

Published on
#ordinals #upper-lower-bounds #hyperoperation #transfinite-recursion #transfinite-induction
1.7k
Views

Every well-ordering is isomorphic to the set of all lesser ordinals under ordinal comparison

Published on
#set-theory #order-theory #ordinals #motivation #well-orders
64
Views

Set Theory: Ordinals Proof

Published on
#set-theory #ordinals
172
Views

Prove $\forall \alpha >2\, (\alpha+\alpha)<\alpha \cdot\alpha <\alpha^\alpha$

Published on
#set-theory #proof-explanation #ordinals
60
Views

Prove that $<$ defined above on $\hat f$ is a well-ordering of order type $\epsilon_{0}$

Published on
#set-theory #order-theory #ordinals
118
Views

Prove $\operatorname{cf}(\alpha)\leq|\alpha|$ if $\alpha$ is a limit ordinal

Published on
#set-theory #cardinals #ordinals
136
Views

How do I prove that if $x \in V_\alpha$, then $\bigcup x \in V_{\alpha + 1}$, where $V_{\alpha+1} = P(V_\alpha)$ and $V$ is the von Neumann Universe?

Published on
#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.