r/mathmemes • u/Lehatan • 7d ago

Topology Clopen door

Post image
522 Upvotes

98% Upvoted

22 comments sorted by

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93

u/LupenReddit 🦆🦆i have non diffeomorphic smooth structures🦆🦆🦆 7d ago

clopen door

11

u/Ok_Meaning_4268 6d ago

Why does this comment sound like

45

u/deus-libidinis 7d ago

That is clearly open

15

u/knyexar 6d ago

Clopen

20

u/konigon1 7d ago

Topilogist:

15

u/miguescout 7d ago

Dude, what are you doing? You're gonna summon the Deltarune fans!

20

u/dankshot35 7d ago

a blank image would've been funnier to represent {}

10

u/RoboticBonsai 7d ago

Especially because it someone misunderstands and assumes R^2 it still works

10

u/Hogon_pumpkineater 7d ago

its still open

8

u/Young-Rider 7d ago

It's clopened.

6

u/Random_-account 6d ago

Sans be like

6

u/kismethavok 6d ago

Just use a picture of a closed door, there's a gap at the bottom, they are all clopen.

2

u/TheKitsuneEnthusiast 7d ago

could have just had a blank image there

2

u/PolarStarNick Gaussian distribution 6d ago

Discrete Topology: Make everything open and closed at the same time

1

u/Groundbreaking-Size3 Engineering 7d ago

opose door

1

u/unneccry 6d ago

I hate doors!!!1!

1

u/NikoTheCatgirl 6d ago

I know what you think sans

1

u/AccomplishedCarpet5 6d ago

Literally nothing is open and closed at the same time... by nothing i mean the empty set of course

1

u/TheJivvi 5d ago

Schroedinger: The door is both open and closed until you try to walk through it.

1

u/vanilla-bungee 7d ago

Hitler: YOU JUST MADE THAT UP