You’re very welcome! I’m slowly teaching myself what is essentially a mathematics undergrad degree, and I’m familiar with the book you’re using, so if you ever have any other questions feel free to ask!
Word of advice: In most math books, especially at lower levels, the majority of the exercises will nearly always be some sort of direct application of the theorems and proofs in the preceding chapter of instruction.
So when you feel stuck, you should go back to those theorems and try to make sure you really understand what the proof is saying. Like try to be skeptical about the statements and examine them until you are fully convinced that the proof is ironclad. Then it’ll be much easier to spot which theorems each exercise is meant to provide elaboration/nuance on, especially the earlier exercises in a chapter.
The later exercises in a chapter tend to be much more difficult, but you’ll nearly always be able to prove them with the theorems you’ve already learned, it’s just that the harder ones will be essentially foreshadowing theorems in future chapters. So the longer you stick with this, deeply examining every theorem and attempting every exercise, the easier it becomes as you begin to understand the pedagogical intent of the author.
The “go outside and touch grass with friends and family on new years instead of being on hexbear” struggle session we had a few years ago really sucked
Take a closer look at the proof and conditions of conjecture 2 in chapter 1. It states that if you have a positive integer n that isn’t prime (i.e it is n=ab for positive integers a and b both less than n, then the integer given by (2^n)-1 = (2^ab) - 1 is not prime either.
But the proof itself for that conjecture gives you a means of computing integer factors x and y of any such number where n is not prime. It uses the telescoping property of sums to prove in general under these conditions that:
(2^n) - 1 = ( (2^b) -1 ) * y
That is, one of the two factors you are looking for takes the form x = (2^b) - 1.
So let’s use this to solve part (a) as an example. (2^15) -1 = 32767 is not prime according to conjecture 2 because 15=3*5, a product of positive integers less than n=15 . Now plug it into the equation with a = 3 and b = 5:
( ( 2^3*5 ) - 1 ) = ( (2^5) - 1 ) * y
Now you just solve for y:
y = ( ( 2^3*5 ) - 1 ) / ( ( 2^5 )- 1 ) = 1057
And we already had x = (2^5) -1 = 31
We may now easily confirm the result by multiplying: 1057 * 31 = 32767.
To apply this to part b, all that remains is to repeat the process with a = 31 and b = 1057.
Ok, we started with not voting makes you as bad as the literal fascists.
Now we’re at voting doesn’t materially effect the outcome in the vast majority of cases, but you’re still as bad as the fascists for not participating in the American civil religion by personally legitimizing our deeply undemocratic institutions with a vote that is essentially an endorsement of further neoliberal policy that would gladly see many of us dead or enslaved.
Is politics just like a sports thing to you or something? Where you show up to support your team every couple years? Why should I care if the Democrats or Republicans are in office if they are both committing genocide, if they both support policy that is a direct threat to the lives and livelihoods of myself and people I care about? I don’t want to be complicit in that, but apparently I’m as bad as the fascists for not voting for actual fascists in sham elections?
Voter opinion doesn’t correlate to policy in literally any study I’ve ever seen of the electorate in this genocidal farce of a settler-slaver colony. The problem is very clearly not a lack of voter participation, but a lack of actual, functioning democratic institutions. You’re never gonna vote your way out of this situation because the capitalists built the entire system to prevent you from doing exactly that.
When you make a big show of voting blue no matter what, you tell the Democrats they don’t need to worry about your interests because they have your vote regardless. Why the fuck would you do that?
I had that happen to me a couple times on freebase DXM but never on HBr. Was it a large dose, high plateau trip?
Tripping on DXM. This drug is the OTC poison of choice for desperate teenagers, and that unfortunately gives it a very bad reputation.
But DXM is actually one of the safer hallucinogens out there so long as you get a DXM only product and don’t mix it with certain other drugs. It’s definitely the closest thing to Ketamine you can buy at walmart or amazon, that’s for sure. Highly recommend that one.
edit: read the title backwards on this one, this gets more hate than it deserves haha
It’s true! I did this one a few years ago after hearing about it on Hexbear
Got it! Thanks so much comrade, that’s extremely helpful! I genuinely can’t wait until I find some work so I can come back here and pay forward all the aid I’ve received from my beloved online commie friends.
I don’t think humans are capable of wiping out life on this planet for good. We’ll really mess shit up, there will be untold suffering amongst human and non-human sentient populations alike, but anthropogenic climate change is something that will take care of itself in short (on geological timescales) order once it causes our population to collapse. Life on Earth has survived much worse in the past.
Nice, it was starting to get lonely in here without the lost libs wandering in and giving us fresh meat and slop. Immediate post federation Hexbear was probably the most fun I’ve ever had on this site.
Edit: Also welcome back to our lemmygrad comrades!
Bump!
No, I read what you wrote. I am upset about exactly what you wrote. I want you to listen to trans people and their experience. I want you to realize your experience as a cis person makes your opinions irrelevant on the matter and if you want to be a good ally you need to purge transphobia from the spaces you moderate.
this is looking like some Escape from Dannemora shit lmao
hope these guys who escaped are safe out there, how likely is it they never get caught?