Science Memes

11068 readers

2796 users here now

Welcome to c/science_memes @ Mander.xyz!

A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.

Rules

Don't throw mud. Behave like an intellectual and remember the human.
Keep it rooted (on topic).
No spam.
Infographics welcome, get schooled.

This is a science community. We use the Dawkins definition of meme.

Research Committee

[email protected]

Other Mander Communities

Science and Research

Biology and Life Sciences

Physical Sciences

Humanities and Social Sciences

Practical and Applied Sciences

Memes

Miscellaneous

founded 2 years ago

MODERATORS

[email protected]

783

I just cited myself. (mander.xyz)

submitted 4 months ago by [email protected] to c/[email protected]

225 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 74 points 4 months ago (65 children)

2/9 = 0.222... 7/9 = 0.777...

0.222... + 0.777... = 0.999... 2/9 + 7/9 = 1

0.999... = 1

No, it equals 1.

[–] [email protected] 23 points 4 months ago (1 children)

Similarly, 1/3 = 0.3333…
So 3 times 1/3 = 0.9999… but also 3/3 = 1

Another nice one:

Let x = 0.9999… (multiply both sides by 10)
10x = 9.99999… (substitute 0.9999… = x)
10x = 9 + x (subtract x from both sides)
9x = 9 (divide both sides by 9)
x = 1

[–] [email protected] 16 points 4 months ago (12 children)

My favorite thing about this argument is that not only are you right, but you can prove it with math.

load more comments (12 replies)

[–] [email protected] 17 points 4 months ago (1 children)

That's the best explanation of this I've ever seen, thank you!

[–] [email protected] 8 points 4 months ago* (last edited 4 months ago) (1 children)

That's more convoluted than the 1/3, 2/3, 3/3 thing.

3/3 = 0.99999...

3/3 = 1

If somebody still wants to argue after that, don't bother.

[–] [email protected] 6 points 4 months ago* (last edited 4 months ago)

Nah that explanation is basically using an assumption to prove itself. You need to first prove that 1/3 does in fact equal .3333... which can be done using the 'convoluted' but not so convoluted proof

load more comments (63 replies)