PlanetMath (more info)
 Math for the people, by the people. Sponsor PlanetMath
Encyclopedia | Requests | Forums | Docs | Wiki | Random | RSS  
Login
create new user
name:
pass:
forget your password?
Main Menu
Owner confidence rating: Medium Entry average rating: No information on entry rating
chain condition (Definition)

A partial order $P$ satisfies the $\kappa$ chain condition if for any $S\subseteq P$ with $|S|=\kappa$ then there exist distinct $x,y\in S$ and some $p$ such that $p\leq x$ and $p\leq y$

If $\kappa=\aleph_1$ then $P$ is said to satisfy the countable chain condition (c.c.c.)




"chain condition" is owned by Henry.
(view preamble | get metadata)

View style:

See Also: partial order, partial order with chain condition does not collapse cardinals

Also defines:  chain condition, countable chain condition, $\kappa$-chain condition, c.c.c., ccc
Log in to rate this entry.
(view current ratings)

Cross-references: satisfies, partial order
There are 10 references to this entry.

This is version 4 of chain condition, born on 2002-07-30, modified 2006-06-23.
Object id is 3241, canonical name is ChainCondition.
Accessed 8953 times total.

Classification:
AMS MSC03E35 (Mathematical logic and foundations :: Set theory :: Consistency and independence results)

Pending Errata and Addenda
None.
[ View all 2 ]
Discussion
Style: Expand: Order:
forum policy
omega_1 ? by AxelBoldt on 2002-08-12 11:52:18
Maybe omega_1 should be aleph_1 in the definition of c.c.c, since we really need a cardinal number here.
[ reply | up ]

Interact
post | correct | update request | add derivation | add example | add (any)