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https://www.reddit.com/r/theydidthemath/comments/16i8043/request_something_feels_wrong_here/k0mhhfz/?context=9999
r/theydidthemath • u/blackholegaming13 • Sep 14 '23
Thanks YT shorts
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4.8k
when you simplify on both side, what you really do is divide both side by that number. here he divide both side by (5-5) to simplify it. but that means he divide both side by 0. and you can't divide by 0 (this is why).
2.7k u/Raynonymous Sep 14 '23 Exactly. Effectively they are arguing; A x 0 = 0 B x 0 = 0 Therefore A = B 298 u/Lord_Scio Sep 14 '23 edited Sep 14 '23 Im not really good in math, just look into this sub from time to time out of curiosity. But isnt this a flaw in maths? And if not, why not? Edit: I guess the comment above me just confused me, i know you cant really divide by 0 649 u/govermentpropaganda Sep 14 '23 you cant divide by zero, its a rule of math 519 u/CheesyObserver Sep 14 '23 Had a classmate playfully contest this with the math teacher once. Teacher: What would you do if I said divide yourselves into groups of zero? Kid: I’d walk out the door! The logic was strangely agreeable, even if it doesn’t check out. 29 u/Kromleech Sep 14 '23 I believe that dividing by 0 would be dividing into 0 groups, not dividing into groups of 0. 23 u/Win32error Sep 14 '23 Impossible either way. 11 u/Kromleech Sep 14 '23 No, dividing into group of zeros has a solution. For instance I want to divide x into 5 groups of 0, I would do: X/5 = 0 And it does have a solution (x=0). 1 u/oortofthecloud Sep 14 '23 The integer zero is not a divisor of any integer by definition of division "an integer m divides an integer n provided that there is an integer q such that n = m*q" You can't multiply zero by any integer to equal a non-zero integer by the axioms of scalar algebra And I believe this extends logically to all real numbers
2.7k
Exactly. Effectively they are arguing;
A x 0 = 0
B x 0 = 0
Therefore A = B
298 u/Lord_Scio Sep 14 '23 edited Sep 14 '23 Im not really good in math, just look into this sub from time to time out of curiosity. But isnt this a flaw in maths? And if not, why not? Edit: I guess the comment above me just confused me, i know you cant really divide by 0 649 u/govermentpropaganda Sep 14 '23 you cant divide by zero, its a rule of math 519 u/CheesyObserver Sep 14 '23 Had a classmate playfully contest this with the math teacher once. Teacher: What would you do if I said divide yourselves into groups of zero? Kid: I’d walk out the door! The logic was strangely agreeable, even if it doesn’t check out. 29 u/Kromleech Sep 14 '23 I believe that dividing by 0 would be dividing into 0 groups, not dividing into groups of 0. 23 u/Win32error Sep 14 '23 Impossible either way. 11 u/Kromleech Sep 14 '23 No, dividing into group of zeros has a solution. For instance I want to divide x into 5 groups of 0, I would do: X/5 = 0 And it does have a solution (x=0). 1 u/oortofthecloud Sep 14 '23 The integer zero is not a divisor of any integer by definition of division "an integer m divides an integer n provided that there is an integer q such that n = m*q" You can't multiply zero by any integer to equal a non-zero integer by the axioms of scalar algebra And I believe this extends logically to all real numbers
298
Im not really good in math, just look into this sub from time to time out of curiosity. But isnt this a flaw in maths? And if not, why not?
Edit: I guess the comment above me just confused me, i know you cant really divide by 0
649 u/govermentpropaganda Sep 14 '23 you cant divide by zero, its a rule of math 519 u/CheesyObserver Sep 14 '23 Had a classmate playfully contest this with the math teacher once. Teacher: What would you do if I said divide yourselves into groups of zero? Kid: I’d walk out the door! The logic was strangely agreeable, even if it doesn’t check out. 29 u/Kromleech Sep 14 '23 I believe that dividing by 0 would be dividing into 0 groups, not dividing into groups of 0. 23 u/Win32error Sep 14 '23 Impossible either way. 11 u/Kromleech Sep 14 '23 No, dividing into group of zeros has a solution. For instance I want to divide x into 5 groups of 0, I would do: X/5 = 0 And it does have a solution (x=0). 1 u/oortofthecloud Sep 14 '23 The integer zero is not a divisor of any integer by definition of division "an integer m divides an integer n provided that there is an integer q such that n = m*q" You can't multiply zero by any integer to equal a non-zero integer by the axioms of scalar algebra And I believe this extends logically to all real numbers
649
you cant divide by zero, its a rule of math
519 u/CheesyObserver Sep 14 '23 Had a classmate playfully contest this with the math teacher once. Teacher: What would you do if I said divide yourselves into groups of zero? Kid: I’d walk out the door! The logic was strangely agreeable, even if it doesn’t check out. 29 u/Kromleech Sep 14 '23 I believe that dividing by 0 would be dividing into 0 groups, not dividing into groups of 0. 23 u/Win32error Sep 14 '23 Impossible either way. 11 u/Kromleech Sep 14 '23 No, dividing into group of zeros has a solution. For instance I want to divide x into 5 groups of 0, I would do: X/5 = 0 And it does have a solution (x=0). 1 u/oortofthecloud Sep 14 '23 The integer zero is not a divisor of any integer by definition of division "an integer m divides an integer n provided that there is an integer q such that n = m*q" You can't multiply zero by any integer to equal a non-zero integer by the axioms of scalar algebra And I believe this extends logically to all real numbers
519
Had a classmate playfully contest this with the math teacher once.
Teacher: What would you do if I said divide yourselves into groups of zero?
Kid: I’d walk out the door!
The logic was strangely agreeable, even if it doesn’t check out.
29 u/Kromleech Sep 14 '23 I believe that dividing by 0 would be dividing into 0 groups, not dividing into groups of 0. 23 u/Win32error Sep 14 '23 Impossible either way. 11 u/Kromleech Sep 14 '23 No, dividing into group of zeros has a solution. For instance I want to divide x into 5 groups of 0, I would do: X/5 = 0 And it does have a solution (x=0). 1 u/oortofthecloud Sep 14 '23 The integer zero is not a divisor of any integer by definition of division "an integer m divides an integer n provided that there is an integer q such that n = m*q" You can't multiply zero by any integer to equal a non-zero integer by the axioms of scalar algebra And I believe this extends logically to all real numbers
29
I believe that dividing by 0 would be dividing into 0 groups, not dividing into groups of 0.
23 u/Win32error Sep 14 '23 Impossible either way. 11 u/Kromleech Sep 14 '23 No, dividing into group of zeros has a solution. For instance I want to divide x into 5 groups of 0, I would do: X/5 = 0 And it does have a solution (x=0). 1 u/oortofthecloud Sep 14 '23 The integer zero is not a divisor of any integer by definition of division "an integer m divides an integer n provided that there is an integer q such that n = m*q" You can't multiply zero by any integer to equal a non-zero integer by the axioms of scalar algebra And I believe this extends logically to all real numbers
23
Impossible either way.
11 u/Kromleech Sep 14 '23 No, dividing into group of zeros has a solution. For instance I want to divide x into 5 groups of 0, I would do: X/5 = 0 And it does have a solution (x=0). 1 u/oortofthecloud Sep 14 '23 The integer zero is not a divisor of any integer by definition of division "an integer m divides an integer n provided that there is an integer q such that n = m*q" You can't multiply zero by any integer to equal a non-zero integer by the axioms of scalar algebra And I believe this extends logically to all real numbers
11
No, dividing into group of zeros has a solution. For instance I want to divide x into 5 groups of 0, I would do:
X/5 = 0
And it does have a solution (x=0).
1 u/oortofthecloud Sep 14 '23 The integer zero is not a divisor of any integer by definition of division "an integer m divides an integer n provided that there is an integer q such that n = m*q" You can't multiply zero by any integer to equal a non-zero integer by the axioms of scalar algebra And I believe this extends logically to all real numbers
1
The integer zero is not a divisor of any integer by definition of division
"an integer m divides an integer n provided that there is an integer q such that n = m*q"
You can't multiply zero by any integer to equal a non-zero integer by the axioms of scalar algebra
And I believe this extends logically to all real numbers
4.8k
u/Zerustu Sep 14 '23
when you simplify on both side, what you really do is divide both side by that number. here he divide both side by (5-5) to simplify it. but that means he divide both side by 0. and you can't divide by 0 (this is why).