User talk:Ashley J. Ballard: Difference between revisions
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'''Welcome to the ''Citizendium!''''' We hope you will contribute [[CZ:Be Bold|boldly]] and well. Here are pointers for a [[CZ:Quick Start|quick start]]. You'll probably want to know [[CZ:The Author Role|how to get started as an author]]. Just look at [[CZ:Getting Started]] for other helpful "startup" links, and [[CZ:Home]] for the top menu of community pages. Be sure to stay abreast of events via [https://lists.purdue.edu/mailman/listinfo/citizendium-l the Citizendium-L (broadcast) mailing list] (do join!) and [http://blog.citizendium.org the blog]. Please also join the [[CZ:Mailing lists|workgroup mailing list(s)]] that concern your particular interests. You can test out [[CZ:How to edit an article|editing]] in the [[CZ:Sandbox|sandbox]] if you'd like. If you need help to get going, the [http://forum.citizendium.org/ forums] is one option. That's also where we discuss policy and proposals. You can ask any [[:Category:CZ Constables|constable]] for help, too. Me, for instance! Just put a note on their "talk" page. Again, welcome and have fun! [[User:D. Matt Innis|D. Matt Innis]] 10:59, 14 September 2008 (CDT) | '''Welcome to the ''Citizendium!''''' We hope you will contribute [[CZ:Be Bold|boldly]] and well. Here are pointers for a [[CZ:Quick Start|quick start]]. You'll probably want to know [[CZ:The Author Role|how to get started as an author]]. Just look at [[CZ:Getting Started]] for other helpful "startup" links, and [[CZ:Home]] for the top menu of community pages. Be sure to stay abreast of events via [https://lists.purdue.edu/mailman/listinfo/citizendium-l the Citizendium-L (broadcast) mailing list] (do join!) and [http://blog.citizendium.org the blog]. Please also join the [[CZ:Mailing lists|workgroup mailing list(s)]] that concern your particular interests. You can test out [[CZ:How to edit an article|editing]] in the [[CZ:Sandbox|sandbox]] if you'd like. If you need help to get going, the [http://forum.citizendium.org/ forums] is one option. That's also where we discuss policy and proposals. You can ask any [[:Category:CZ Constables|constable]] for help, too. Me, for instance! Just put a note on their "talk" page. Again, welcome and have fun! [[User:D. Matt Innis|D. Matt Innis]] 10:59, 14 September 2008 (CDT) | ||
== Cardinality == | |||
Hi Ashley. I just saw the page on [[cardinality]] that you wrote. Very nice work, thank you. Unfortunately, I know nothing about set theory, so all I could do is add some links. However, I do wonder about the formula | |||
:<math>\mathfrak{a} + \mathfrak{b} = \mathfrak{a \cdot b} = \max (\mathfrak{a},\mathfrak{b}).</math> | |||
That does not seem to be true for finite cardinal numbers. Is there perhaps some condition on the cardinal numbers that I overlooked? -- [[User:Jitse Niesen|Jitse Niesen]] 13:14, 28 October 2008 (UTC) | |||
Revision as of 07:14, 28 October 2008
Welcome!
| Citizendium Getting Started | |||
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Welcome to the Citizendium! We hope you will contribute boldly and well. Here are pointers for a quick start. You'll probably want to know how to get started as an author. Just look at CZ:Getting Started for other helpful "startup" links, and CZ:Home for the top menu of community pages. Be sure to stay abreast of events via the Citizendium-L (broadcast) mailing list (do join!) and the blog. Please also join the workgroup mailing list(s) that concern your particular interests. You can test out editing in the sandbox if you'd like. If you need help to get going, the forums is one option. That's also where we discuss policy and proposals. You can ask any constable for help, too. Me, for instance! Just put a note on their "talk" page. Again, welcome and have fun! D. Matt Innis 10:59, 14 September 2008 (CDT)
Cardinality
Hi Ashley. I just saw the page on cardinality that you wrote. Very nice work, thank you. Unfortunately, I know nothing about set theory, so all I could do is add some links. However, I do wonder about the formula
That does not seem to be true for finite cardinal numbers. Is there perhaps some condition on the cardinal numbers that I overlooked? -- Jitse Niesen 13:14, 28 October 2008 (UTC)