/sci/ - Science & Math » Thread #12943929

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Anonymous Thu 08 Apr 07:52:07 2021 No.12943929 View Reply Original Report

Quoted By: >>12943945 >>12944001 >>12944025 >>12944063 >>12944074 >>12944227 >>12944246 >>12944334 >>12944499 >>12944596 >>12944720 >>12944743 >>12944767

Isn't the fact that zero division is undefined proof that math is invented and not discovered?

Anonymous

Anonymous Thu 08 Apr 2021 07:57:00 No.12943945 Report

Quoted By: >>12944058

>>12943929
no

Anonymous

Anonymous Thu 08 Apr 2021 08:16:27 No.12944001 Report

Quoted By: >>12944033 >>12944036 >>12944202

>>12943929
Why is infinity - infinity not 0?

Anonymous

Anonymous Thu 08 Apr 2021 08:25:19 No.12944025 Report

Quoted By:

>>12943929
>zero division is undefined
It is perfectly-well defined as dividing something into zero equally-size parts.
The problem is zero parts means no division was done, so division by zero cannot be done.
This is not a difficult problem, except perhaps for those those who do not understand division.

Anonymous

Anonymous Thu 08 Apr 2021 08:26:33 No.12944033 Report

Quoted By:

>>12944001
infinities vary

Anonymous

Anonymous Thu 08 Apr 2021 08:26:57 No.12944036 Report

Quoted By:

>>12944001
If you think of subtraction as reducing the number the amount of times listed, why would you stop at 0? It's minus infinity, so you never stop subtracting. You would just carry on past 0 to -infinity.

Anonymous

Anonymous Thu 08 Apr 2021 08:37:17 No.12944058 Report

Quoted By:

>>12943945
Why?

Anonymous

Anonymous Thu 08 Apr 2021 08:39:30 No.12944063 Report

Quoted By: >>12944072 >>12944120 >>12944597

>>12943929
division by zero is undefined because it isn't definable without a contradiction.

Assume 1/0=c for some number c. Then (1*0)/0= c*0 implies 1=0, a contradiction I suppose. This contradiction proof assume 0/0=1.

Anonymous

Anonymous Thu 08 Apr 2021 08:42:41 No.12944072 Report

Quoted By:

>>12944063
I guess you could replace 1 with any number a so that a=0 follows, which implies that no numbers except for 0 exist.

Anonymous

Anonymous Thu 08 Apr 2021 08:43:34 No.12944074 Report

Quoted By: >>12944197

>>12943929
Both zero and infinity don’t exist. If they were so “obvious” and “natural” then how come they have been introduced to maths quite late?

Anonymous

Anonymous Thu 08 Apr 2021 08:59:38 No.12944120 Report

Quoted By: >>12944152 >>12944157 >>12944191 >>12944219

>>12944063
square root of -1 is undefined because it isn't definable without a contradiction.

assume i^2 = -1 for some number i. then -1 <1 implies -i < i, which in turn implies

-i^2 < i^2
1 < -1,

a contradiction. this contradiction proof assumes i^2 = -1.

Anonymous

Anonymous Thu 08 Apr 2021 09:13:36 No.12944152 Report

Quoted By: >>12944167

>>12944120
>then -1 <1 implies -i < i,
Do you mean -1 <1 implies i < -i?

Anonymous

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Anonymous Thu 08 Apr 2021 09:15:41 No.12944157 Report

Quoted By: >>12944167

>>12944120

Anonymous

Anonymous Thu 08 Apr 2021 09:18:22 No.12944166 Report

Quoted By:

Infinity is Not a Number. It is a fucking limit. It is not a fucking number.

Anonymous

Anonymous Thu 08 Apr 2021 09:18:42 No.12944167 Report

Quoted By: >>12944739

>>12944152
if you assume i < 0, then

-1 < 1
-i > i
-i^2 < i^2
1 < -1

same thing.

>>12944157
you have no argument

Anonymous

Anonymous Thu 08 Apr 2021 09:24:58 No.12944191 Report

Quoted By: >>12944200

>>12944120
wow what a tard.
-1 < 1
(-1)^2 < 1^2
1 < 1

a contradiction.

Anonymous

Anonymous Thu 08 Apr 2021 09:27:29 No.12944197 Report

Quoted By:

>>12944074
found the virgin

Anonymous

Anonymous Thu 08 Apr 2021 09:28:15 No.12944200 Report

Quoted By: >>12944205

>>12944191
x^2 is not monotone. you must be over 18 to post here.

Anonymous

Anonymous Thu 08 Apr 2021 09:29:46 No.12944202 Report

Quoted By:

>>12944001
Suppose you have an infinite set of coins labeled with the natural numbers.

Take away every coin. Then 0 coins remain.
? - ? = 0

Take away every coin except the first. Then 1 coin remains.
? - ? = 1

Take away every coin except the first 2. Then 2 coins remain.
? - ? = 2

Take away every odd coin. Then ? coins remain.
? - ? = ?

There's no way to assign it a consistent value.

Anonymous

Anonymous Thu 08 Apr 2021 09:30:51 No.12944205 Report

Quoted By: >>12944209

>>12944200
Exactly my point look at the post im refering to

Anonymous

Anonymous Thu 08 Apr 2021 09:32:04 No.12944209 Report

Quoted By: >>12944219

>>12944205
there's no squaring in that post

Anonymous

Anonymous Thu 08 Apr 2021 09:36:59 No.12944219 Report

Quoted By: >>12944222

>>12944120
>>12944209
>-i^2 < i^2

Anonymous

Anonymous Thu 08 Apr 2021 09:38:40 No.12944222 Report

Quoted By: >>12944231

>>12944219
multiplication by i, not squaring

Anonymous

Anonymous Thu 08 Apr 2021 09:40:34 No.12944227 Report

Quoted By:

>>12943929
axioms are invented.
the consequences of axioms are discovered.
the trick is to see about what kind of things your set of axiom applies.

Anonymous

Anonymous Thu 08 Apr 2021 09:41:31 No.12944231 Report

Quoted By: >>12944243

>>12944222
Well if so you made the mistake of

-1 < 1
-1*-1 < 1*-1
1 < -1

Anonymous

Anonymous Thu 08 Apr 2021 09:53:00 No.12944243 Report

Quoted By:

>>12944231
anon, we've been over this. it doesn't matter if i preserves or reverses the inequality sign. you obtain 1 < -1 in both cases.

Anonymous

Anonymous Thu 08 Apr 2021 09:54:34 No.12944246 Report

Quoted By: >>12944484

>>12943929
>ctrl+f wheel
>0 results
Absolute state of /his/

Anonymous

Anonymous Thu 08 Apr 2021 10:38:45 No.12944334 Report

Quoted By:

>>12943929
its proof 0 and infinity arent valid concepts, everything else is real

Anonymous

Anonymous Thu 08 Apr 2021 11:42:05 No.12944484 Report

Quoted By: >>12944487

>>12944246
wheels don't solve anything, that T looking thing is just another poorly defined non-number

Realistically, 0/0 should equal 'x', the variable

Anonymous

Anonymous Thu 08 Apr 2021 11:42:42 No.12944487 Report

Quoted By: >>12944498

>>12944484
What if I need more than one variable?

Anonymous

Anonymous Thu 08 Apr 2021 11:47:39 No.12944498 Report

Quoted By: >>12944503

>>12944487
gee idk, maybe the inventors of upside-down 'T' should have thought of that.

use any letter you want

Anonymous

Anonymous Thu 08 Apr 2021 11:49:21 No.12944499 Report

Quoted By:

>>12943929
how so?

Anonymous

Anonymous Thu 08 Apr 2021 11:53:20 No.12944503 Report

Quoted By: >>12944523

>>12944498
You mean ?
It's pronounced "bottom"
It usually refers to the false proposition, but is generally appropriated to areas of math where you need "definedness"

Anonymous

Anonymous Thu 08 Apr 2021 11:58:35 No.12944523 Report

Quoted By: >>12944526 >>12944587

>>12944503
>refers to the false proposition
so it's completely meaningless schizo drivel

just write 0/0=x, where x is any element in any algebraic field and call it done

Anonymous

Anonymous Thu 08 Apr 2021 12:00:09 No.12944526 Report

Quoted By:

>>12944523
schizo

Anonymous

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Anonymous Thu 08 Apr 2021 12:04:43 No.12944538 Report

Quoted By:

1/0 = infinity
easy

Anonymous

Anonymous Thu 08 Apr 2021 12:22:37 No.12944587 Report

Quoted By:

>>12944523
>algebraic field
Doesn't considering "algebraic" already presuppose a variable

Anonymous

Anonymous Thu 08 Apr 2021 12:26:18 No.12944596 Report

Quoted By:

>>12943929
It means that our world is inherently flawed.
Seriously, if God was a game designer he would be fired or work for Bethesda.

Anonymous

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Anonymous Thu 08 Apr 2021 12:26:43 No.12944597 Report

Quoted By: >>12944702

>>12944063
>division by zero is undefined because it isn't definable without a contradiction.
That's WRONG you fucking retard. There's a whole field that studies the many beautiful structures where division by zero is meaningful: https://en.wikipedia.org/wiki/Wheel_theory?wprov=sfla1

Anonymous

Anonymous Thu 08 Apr 2021 13:03:36 No.12944702 Report

Quoted By: >>12947762

>>12944597
>beautiful
>>>/x/

Anonymous

Anonymous Thu 08 Apr 2021 13:08:13 No.12944720 Report

Quoted By:

>>12943929
OP, you should stop breathing through your mouth so much, you have no idea what you are talking about.

Anonymous

Anonymous Thu 08 Apr 2021 13:13:22 No.12944739 Report

Quoted By:

>>12944167
i has argument pi/2

Anonymous

Anonymous Thu 08 Apr 2021 13:13:58 No.12944743 Report

Quoted By:

>>12943929
>invented and not discovered?
Explain the difference between an invention and a discovery.

Anonymous

Anonymous Thu 08 Apr 2021 13:22:28 No.12944767 Report

Quoted By:

>>12943929
division by zero was originally defined in Brahmagupta's axioms as 0. Rigorists realised that this definition was retarded and any other definition would be arbitrary and equally retarded, hence zero-division is undefined.

A thread got deleted so this once could be posted.

Anonymous

Anonymous Thu 08 Apr 2021 22:45:47 No.12947252 Report

Quoted By:

Math is just a set of conventions. If we would change some conventions the whole field would collapse so we keep this field sort of working and when we are doing something we think is new we just redevine ever simbol mankind has ever thought about and there you have it a new study field.

Anonymous

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Anonymous Fri 09 Apr 2021 00:57:09 No.12947762 Report

Quoted By:

>>12944702
>>>>/x/
why are ye fearful, oh ye of little faith?

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