Pavel

Dhein, I just wanted to talk about it

I am not happy such people exist in this world. Like she seemed nice and adequate and then said that crap about me being fat and it seemed as if it wasn't her, like she changed all of a sudden from a nice person to a bad one.

I just got frustrated cause I think she's a bitch

She has my phone number

We just talked on there, we had to use some sort of a messenger to text each other

Relationship

I told her that if I get fat I'll do it on purpose to see if she leaves me just or get rid of a shitty person, and she answered, saying:"Might as well stop talking now", so I said goodbye and deleted my Facebook, she hasn't contacted me ever since.

Oops didn't finish clicked send by accident

Guys, is it normal if a girlfriend dumps you because you might get fat again? I've known the girl for 4 months and I've been in the military all this time. I lost about 80 pounds while in the military. She told me she was gonna leave me if I get fat again. I didn't give much attention to her words when she first said it, but decided to bring it up again yesterday. I told her that if I get fat I'll do it on purpose to see whether or O TBN sbr

Hello, I was wondering, who proved the fact that for every positive integer n there is a gap of n consecutive non-primes? Does this theorem have a name?

yea, that's what it's called

if k is*

is k is a natural number and you sum from 1 to n, then you get logN! which is approximately nlogn

whats k

I remember a task "prove that all cars on mars are blue and red", the solution is:"the set of cars is empty, that's why they're red and blue"

the universal set

well, when notB=B i think that we don't have any students who smoke or don't smoke, that that's only possible when the set is empty?

yea, but according to ABnotC=A all students who are teenagers live in a dorm and smoke. But yea, we are picking a student from a set of all teenage students

i actually screwed it up a little, because in the book it says B means "students don't smoke", lol, and C means "students live in a dorm", but anyways

@TedShifrin that's weird then. there are other questions, describe ABnotC when a)ABnotC=A -- my answer: all students that are teens live in dorm and smoke b) notC is a subset of B -- my answer: all students that smoke also live in a dorm, so we are picking from a set of students who are teens, live in dorm and smoke. c) notA=B, my answer--all students who live in a dorm are not teens, and we pick from the set BnotC, is it correct?

@TedShifrin then probability theory question: among the students who take probability theory class we pick one, let event A denote all students that are teenagers, B that they live in a dorm, C that they don't smoke, what is "A intersect B intersect complement_of_C" when B=complement_of_B?

I think not

set theory question: what set is equal to its complement? Is it even possible?

@Raphael why did you suggest that I add an answer to that question, even if it's a hint? Just for statistics, that cs.SE has this certain percentange of answers? I noticed that some people just leave a comment if the answer is short.

There's a Russian math forum math.hashcode.ru/questions that has a lot of people who come in and expect everyone to do their homework, the questions are literally straight up texts saying "you're given this, you need to do this" copied verbatim from the problem statements, there's no "thanks", or "I tried this and got stuck doing this".

@Raphael I read your comments, thanks. I am not yet used to different policies on different stackexchange websites, but I do agree that it's important that the person understands things.

i proved that it is decidable for binary CA, what more do you need?

with that rule there will always be at least one '1' on the tape in the next state.

CA Rule 110 includes derivation rule 001->1

@r.e.s. Did you read my post at all?

i seriously can't understand how after so much time of explaining some of you still can't see what i am saying

i don't care about any finite configurations, i only care about a configuration with all zeros from which no non-zero configuration can be derived! and that's when the automaton halts, in other cases it does not

it is size n, but it is not static

@r.e.s. size n configuration can crawl to the left, like so:

I think you are trolling, so I'm going to stop responding.

do you still not understand something i wrote or what?

You can think of this as periodic behavior which produces one all-zeros tape after the other (this is what halting means).

all the symbols in state s are 0, which means that if the automaton has halted, in any state t, that comes after s, we will also have all zeros, and that's what the definition says

the tape is infinite!

what constraint?

so the system will never halt

you do realize that your x->x rules will never be triggered in places where we have all zeros, because those will be transformed into all ones, and the only rule that will be triggered in those places is 111->1

is this for binary CA? If so, then no, it doesn't, you will always have 1's

what is x->x?

the definition is in my post

the automaton is not able to produce anymore non-white cells in the future states, for short.

Okay, so, if at some state, after doing a certain number of steps, we have an empty tape with no non-white cells, and in all the future states we have the same tape, then the automaton has halted.

Do you understand what I mean by "tape"?