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![[parent]](http://images.planetmath.org:8080/images/uparrow.png) Viewing Message
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| ``thanks! Re: a post for entry "ordinal number"''
by mathforever on 2004-11-19 17:13:30 |
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| > with the ordering relation x<y being "x is a proper subset
> of y". Recall the definition of proper subset: "x is a
> proper subset of y" means "(x is a subset of y) AND (x is
> not equal to y)."
Well, I haven't noticed the word "proper", now everything is Ok. Thanks a lot for replies!
May be it is worth to take this example in the entry?
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