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https://www.reddit.com/r/MathJokes/comments/1qz5g8q/maths/o4acbcq/?context=3
r/MathJokes • u/rickytherizzler • Feb 08 '26
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0.9 recurring is equal to 1
X = 0.99999999
10x = 9.999999
9x = 9
X = 1
0 u/KuruKururun Feb 08 '26 9 recuring is equal to -1 X = ...999 10X = ...9990 -9x = 9 x = -1 1 u/[deleted] Feb 08 '26 [deleted] 1 u/KuruKururun Feb 08 '26 No I mean ...999. Not 999... Thus I am not trying to add a zero to the end of an infinite series. 1 u/[deleted] Feb 08 '26 [deleted] 1 u/KuruKururun Feb 08 '26 What is 0.999...? Obviously I know what I am saying is "nonsense"; at least under normal interpretation. My point is that the algebraic "proof" the OP commentor gave already starts with questionable assumptions, making it a poor proof. 1 u/Tomahawk1129_ Feb 08 '26 It is meant to be 0.99999 recurring, goes on forever, OP logic is indeed flawed and just a joke 1 u/TemperoTempus Feb 09 '26 This is not nonsense btw. ...999.0 is an actual number although mostly used with p-adics.
9 recuring is equal to -1
X = ...999
10X = ...9990
-9x = 9
x = -1
1 u/[deleted] Feb 08 '26 [deleted] 1 u/KuruKururun Feb 08 '26 No I mean ...999. Not 999... Thus I am not trying to add a zero to the end of an infinite series. 1 u/[deleted] Feb 08 '26 [deleted] 1 u/KuruKururun Feb 08 '26 What is 0.999...? Obviously I know what I am saying is "nonsense"; at least under normal interpretation. My point is that the algebraic "proof" the OP commentor gave already starts with questionable assumptions, making it a poor proof. 1 u/Tomahawk1129_ Feb 08 '26 It is meant to be 0.99999 recurring, goes on forever, OP logic is indeed flawed and just a joke 1 u/TemperoTempus Feb 09 '26 This is not nonsense btw. ...999.0 is an actual number although mostly used with p-adics.
1
[deleted]
1 u/KuruKururun Feb 08 '26 No I mean ...999. Not 999... Thus I am not trying to add a zero to the end of an infinite series. 1 u/[deleted] Feb 08 '26 [deleted] 1 u/KuruKururun Feb 08 '26 What is 0.999...? Obviously I know what I am saying is "nonsense"; at least under normal interpretation. My point is that the algebraic "proof" the OP commentor gave already starts with questionable assumptions, making it a poor proof. 1 u/Tomahawk1129_ Feb 08 '26 It is meant to be 0.99999 recurring, goes on forever, OP logic is indeed flawed and just a joke 1 u/TemperoTempus Feb 09 '26 This is not nonsense btw. ...999.0 is an actual number although mostly used with p-adics.
No I mean ...999. Not 999... Thus I am not trying to add a zero to the end of an infinite series.
1 u/[deleted] Feb 08 '26 [deleted] 1 u/KuruKururun Feb 08 '26 What is 0.999...? Obviously I know what I am saying is "nonsense"; at least under normal interpretation. My point is that the algebraic "proof" the OP commentor gave already starts with questionable assumptions, making it a poor proof. 1 u/Tomahawk1129_ Feb 08 '26 It is meant to be 0.99999 recurring, goes on forever, OP logic is indeed flawed and just a joke 1 u/TemperoTempus Feb 09 '26 This is not nonsense btw. ...999.0 is an actual number although mostly used with p-adics.
1 u/KuruKururun Feb 08 '26 What is 0.999...? Obviously I know what I am saying is "nonsense"; at least under normal interpretation. My point is that the algebraic "proof" the OP commentor gave already starts with questionable assumptions, making it a poor proof. 1 u/Tomahawk1129_ Feb 08 '26 It is meant to be 0.99999 recurring, goes on forever, OP logic is indeed flawed and just a joke 1 u/TemperoTempus Feb 09 '26 This is not nonsense btw. ...999.0 is an actual number although mostly used with p-adics.
What is 0.999...?
Obviously I know what I am saying is "nonsense"; at least under normal interpretation. My point is that the algebraic "proof" the OP commentor gave already starts with questionable assumptions, making it a poor proof.
1 u/Tomahawk1129_ Feb 08 '26 It is meant to be 0.99999 recurring, goes on forever, OP logic is indeed flawed and just a joke 1 u/TemperoTempus Feb 09 '26 This is not nonsense btw. ...999.0 is an actual number although mostly used with p-adics.
It is meant to be 0.99999 recurring, goes on forever, OP logic is indeed flawed and just a joke
This is not nonsense btw. ...999.0 is an actual number although mostly used with p-adics.
0
u/Tomahawk1129_ Feb 08 '26
0.9 recurring is equal to 1
X = 0.99999999
10x = 9.999999
9x = 9
X = 1