/sci/ - Science & Math

>>14685032
>>>/sci/thread/S3751105#p3751197
assuming
>Over lapping is allowed. For example, in the case of n=2, watching episode 1, then 2, then 1 again, would fit the criteria.
isn't required, least of all explained correctly, the actual answer is literally just n!, or in the lens of season 1 of Haruhi, 14! = 87,178,291,200

i never realized until now that this meme about haruhi math was just schizo brainlet shit.

never stop being turbogay, 4chan.

>>8732901
>Number theory grad student
>Prof says we'll need scheme theory to go further
>Proceeds to explain scheme theory for 2 hours
>Moves one to building modular forms on [math]\mathbb{Z}[\frac{1}{N}][/math]

I wasn't prepared for that.
Fucking schemes, how do they work ?

>WC1 hit by plane, building falls
>WC2 hit by plane, building falls exactly the same way
>WC7 plane was prevented from reaching its intended target, building still falls exactly the same way

GUYS

GUYS

EMDrive

ELON MUSK DRIVE

GUYS

GUYS

>>7954435
>Recall that this is time travel; you can't just make up the rules as you go along.

Great Scott!

>>7916702
>realization he is picking through the floating trash looking for drinking straws to sell to local vendors who in turn use them in their drinks to sell to the local population and tourists, if tourists visit this shithole

>>7704972
YFW Cory makes the most money of them all

Is there any scientific basis on why I seem to take luck from other people? Every single person I come into physical contact with suddenly has a terrible day, just today I shook a guys hand after pointing him out to the dentists office, only to watch him get side swiped by a car. Then the guy I hitched a ride from a few hours ago got pulled over and arrested right in front of me. Then just a few minutes ago this one punk kid was doing one of those gang style hand shakes with me jsut out o the blue, called me a homie, told me to have a nice night, then he tripped over seemingly nothing and smashed up his eye socket and nose.

Is this some kinda 6th dimensional energy tapping on my part, or is it just a ton of coincidences that happen with enough frequency for me to take notice?

>>7277854
>crackers
How rude

This question is a bit autistic, I want to know if I can strengthen the definition in Lang in the following way.

Given a monoid (M,*),
let a closed monoid subset be a set S,
so that for all x,y in S, x*y is also in S.

Now a submonoid is defined as a pair (S,#), where
1. # is the restriction of * to a subset S of M, which is required to be a closed monoid subset,
and also
2. the identity e of (M,*) must be in S too.

Question: If (S,#) is a pair fulfilling condition 1. and it has a unit so that it's a monoid, does this already imply the unit is e?

I.e. can I define a submonoid of (M,*) as a monoid (S,#), so that S is a closed monoid subset of M?

This question is a bit autistic, I want to know if I can strengthen the definition in Lang in the following way.

Given a monoid (M,*),
let a closed monoid subset be a set S,
so that for all x,y in S, x*y is also in S.

Now a submonoid is defined as a monoid (S,#), where
1. # is the restriction of * to a subset S of M, which is required to be a closed monoid subset,
and also
2. the identity e of (M,*) must be in S too.

Question: If (S,#) is a pair fulfilling condition 1. and it has a unit so that it's a monoid, does this already imply the unit is e?

I.e. can I define a submonoid of (M,*) as a monoid (S,#), so that S is a closed monoid subset of M?

>YFW you find out that mercury in vaccines really does cause autism.

>2014
>law of the excluded middle
>kek

mfw I actually forgot an exam

Livin' the dream, boys. Livin' the dream...

Puzzle time, /sci/! Give me your best ones.

I'll start us off with an old favorite. A surfer lives on an island in the shape of an equilateral triangle. She wants to build a hut so as to minimize the total distance she has to walk to the three shores. Where on the island should she build her hut?

Ok guys, puzzle time! Post your best ones. I'll start us off with an easy one.

Let <span class="math">A = [0,1]\times [0,1][/spoiler] be the unit square in the Euclidean plane. Let <span class="math">L = \{(m,n)\colon m\in \mathbb{Z},\: n\in \mathbb{Z}\}[/spoiler] be the infinite integer lattice. Draw all possible lines connecting any two points of <span class="math">L[/spoiler], and denote this by <span class="math">M[/spoiler]. Is <span class="math">A\subset M[/spoiler]?

>there are OPs on /sci/ right now who have only had sex with men before

I don't even

Can someone tell me how this will affect earth?

>>5841726

>>5787329
>more summer

>>5396008
>Yfw Pythagoreans are a thing again

Welp.

I can't sleep because I'm high on methamphetamine. What do?

>>5153073
Well, won't he be traveling way over 88mph?