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Author Topic: Number zero and Number one [Set Theory]  (Read 761 times)
emsjvh (OP)
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April 03, 2014, 10:52:11 AM
 #1

What are the simplest axioms we can use to describe 0 and 1 (before well-ordering etc....)?



dx5
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April 03, 2014, 11:04:18 AM
 #2

I don't think this will get many replies.
emsjvh (OP)
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April 03, 2014, 11:05:26 AM
 #3

I don't think this will get many replies.

ugh.... I thought the bitcoin community was filled with Mathematic fans.....

:/
Equate
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April 03, 2014, 11:06:21 AM
 #4

I don't think this will get many replies.

ugh.... I thought the bitcoin community was filled with Mathematic fans.....

:/

No Mathematics fans here only miners.
Rias
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April 03, 2014, 11:18:07 AM
 #5

I don't think this will get many replies.

ugh.... I thought the bitcoin community was filled with Mathematic fans.....

:/

No Mathematics fans here only miners.
I wouldn't say so. If you look hard enough - eventually you will find someone who is into math Cheesy
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April 03, 2014, 11:54:50 AM
 #6

What are the simplest axioms we can use to describe 0 and 1 (before well-ordering etc....)?

You've got to be in it to win it.

emsjvh (OP)
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April 03, 2014, 07:37:50 PM
 #7

What are the simplest axioms we can use to describe 0 and 1 (before well-ordering etc....)?

You've got to be in it to win it.


Jesus Christ.
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April 03, 2014, 08:21:49 PM
 #8

I don't think this will get many replies.

ugh.... I thought the bitcoin community was filled with Mathematic fans.....

:/

No Mathematics fans here only miners.

no one likes math except for math teachers

emsjvh (OP)
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April 03, 2014, 08:32:15 PM
 #9

I don't think this will get many replies.

ugh.... I thought the bitcoin community was filled with Mathematic fans.....

:/

No Mathematics fans here only miners.

no one likes math except for math teachers


I like Math. I just don't love it.

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April 03, 2014, 08:48:21 PM
 #10

I don't think this will get many replies.

ugh.... I thought the bitcoin community was filled with Mathematic fans.....

:/

No Mathematics fans here only miners.

no one likes math except for math teachers


I like Math. I just don't love it.



Indeed, Math is okay, but it's not like I think about it when I'm horny.
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April 03, 2014, 08:51:56 PM
 #11

ego and soul

13oZY8zzWEp48XZpEEi8zSkYJF5AWR2vXc DMhYmNzMnU2Avgu7sF3GSDybHumj8XH8V8
Currently seeking plot of land to host 1,000,000+ person music festival
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emsjvh (OP)
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April 03, 2014, 10:18:00 PM
 #12

dankkkk?

How's your 30+ loss streaks treatin ya?


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April 04, 2014, 03:34:07 AM
 #13

?

13oZY8zzWEp48XZpEEi8zSkYJF5AWR2vXc DMhYmNzMnU2Avgu7sF3GSDybHumj8XH8V8
Currently seeking plot of land to host 1,000,000+ person music festival
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emsjvh (OP)
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April 05, 2014, 03:31:30 PM
 #14

do you use the username "dankkk" when you're in JD or PD chat?

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April 05, 2014, 03:43:58 PM
 #15

in the real number corpse

the neutral is the real number with property

1.X=X.1=X  where X is any real number and "." is the mulktipplication as defined in R

the zero is the real number with the property

0.X=X.0=0  where X is any real number and "." is the multiplication as defined in R

they are unique by definition (easy to prove)


Not sure it's a mathematical answer you wanted tought

emsjvh (OP)
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April 05, 2014, 06:00:38 PM
 #16

eh kinda. That was something similar my professor showed me but with Natural numbers since using real numbers is not allowed until you define them which requires much more proof.


I was kinda just going for the number 0.

0 has certain properties which we can accept as axioms.
1 has certain properties which we can accept as axioms.


0 = empty set
1 = {empty set}
2 = [empty set, 1}

etc...





mighty jol
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April 05, 2014, 06:23:25 PM
 #17

well if you want to go with the naturals, of course everything is axiomatic: it 's a group whith the property "if it contains a natural number then it contains the next one"

if X belongs to N (natural numbers group) then X+1 belongs to N

1 and 0 being defined as in my previous post:

N={0,1,1+1=2,2+1=3,........}

the thing is the digits from 0 to 9 are just made up as they were needed at a time. so the building properties of the group is axiomatic and if you want to deny it, well you have to make up your own maths there

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April 05, 2014, 06:26:06 PM
 #18

Maths is bore ! i didn't like to study math how can tell answer of this question very difficult to me

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emsjvh (OP)
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April 05, 2014, 06:33:39 PM
 #19

so what axioms do we use to define natural numbers?

What is the simplest one?
mighty jol
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April 05, 2014, 06:37:13 PM
 #20

yeah it's a first year of math superior studies i think. but it's not that complicated honestly. basically what he is asking is "how did we build the mathematical objects 1 and 0"
and the answer is easy:

because we needed them, digits are the building blocks of numbers then group of numbers build up into other groups and so on. If you want a full proof of real numbers and it's 10 properties then just check basics of linear algebra.

axiom to define natural number group is: 1)it contains 0
                                                 2)if it contains any x then it contains this x +1
so if it contains 0 then it contains 1
if it contains 1 then it contains 2
and so on...

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