Sujet : Re: More complex numbers than reals?
De : chris.m.thomasson.1 (at) *nospam* gmail.com (Chris M. Thomasson)
Groupes : sci.mathDate : 09. Jul 2024, 20:11:34
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <v6k216$1g6tr$3@dont-email.me>
References : 1 2 3 4
User-Agent : Mozilla Thunderbird
On 7/9/2024 10:30 AM, Ben Bacarisse wrote:
WM <wolfgang.mueckenheim@tha.de> writes:
Le 09/07/2024 à 14:37, Ben Bacarisse a écrit :
>
A mathematician, to whom this is a whole new topic, would start by
asking you what you mean by "more". Without that, they could not
possibly answer you.
>
Good mathematicians could.
>
So, what do you mean by "more" when applied to
sets like C and R?
>
Proper subsets have less elements than their supersets.
Let's see if Chris is using that definition. I think he's cleverer than
you so he will probably want to be able to say that {1,2,3} has "more"
elements than {4,5}.
I was just thinking that there seems to be "more" reals than natural numbers. Every natural number is a real, but not all reals are natural numbers.
So, wrt the complex. Well... Every complex number has a x, or real component. However, not every real has a y, or imaginary component...
Fair enough? Or still crap? ;^o