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From: WM <wolfgang.mueckenheim@tha.de>
Newsgroups: sci.math
Subject: Re: How many different unit fractions are lessorequal than all unit
 fractions? (infinitary)
Date: Mon, 21 Oct 2024 12:01:35 +0200
Organization: A noiseless patient Spider
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On 21.10.2024 11:21, FromTheRafters wrote:
> WM brought next idea :

>> If the range was complete, the image shows that the range was not 
>> complete.
> 
> What's the preimage?

The range. It is a complete set by assumption. All its numbers can be 
mapped, some of them not to the preimage.

Regards, WM