ginnungagap

10 ms·

61.
by ginnungagap 4y ago
I am quite sad that "The secret life of videocassettes in Iran" is not a real article
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by ginnungagap 4y ago
I'm european and I've always been surprised at how far east Vienna is compared to where I imagine it to be. I mentioned this to many people and quite a few very surprised that Vienna is considerably further east than Prague (if yo
63.
by ginnungagap 4y ago
I've been reading the dune series too and while the first book was amazing and the second was good, they get worse fast after that in my opinion
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by ginnungagap 4y ago
As a mathematician this looks like standard usage of "just" in mathematics, but I do try to avoid doing that because it does sound arrogant and patronizing
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by ginnungagap 4y ago
Where are German users supposed to have received this message? I'm not German but my telegram account is registered with a German number and I haven't received anything
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by ginnungagap 4y ago
There's also chesstempo for puzzles if you are not aware of it already, the puzzles are great and free, with subscription tiers for more features (unlimited endgame puzzles, custom puzzle sets, opening trainer etc.). The UI is ugly, c
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by ginnungagap 4y ago
> simply because the latter offers superior game analysis experience. But it does so once per day, unless you pay (the low depth analysis you get for free on chess.com is not great to put it mildly)
68.
by ginnungagap 4y ago
I'm Italian, my PhD in Germany in pure maths is paid 40% more than friends working in Italy with engineering degrees. If I stay in Germany after finishing my degree I could easily make twice the money I could get in Italy regardless of
69.
by ginnungagap 4y ago
This is probably enough information for the folks at the Science Fiction & Fantasy Stackexchange ( https://scifi.stackexchange.com/ ) to identify the story, they get similar story identification requests all the time and
70.
by ginnungagap 4y ago
Your grade reflects how well you learned with respect to your peers. Getting 80% in an exam in a weak cohort of students might earn you an A, while doing so in a strong one might get you a B instead. Is this fair toward a student getting a
71.
by ginnungagap 5y ago
> He hasn't done any harm to anyone. Reading posts from former employees and plagiarism accusations (look up Matthew Cook) suggests otherwise. I remember this being discussed on HN before as well, even though the search function is
72.
by ginnungagap 5y ago
I have aphantasia and I'm doing a PhD in math. I draw on paper when I'm trying to visualize something, but the area I work in is quite abstract and very often the images are huge oversimplifications that give some intuition, but o
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by ginnungagap 5y ago
Makes sense, the French railway metric strikes again...
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by ginnungagap 5y ago
> Eurostar and (the rest of) the French high speed network really compensate some simple geography. Wouldn't German travelers also take advantage of French high speed trains when travelling to Spain?
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by ginnungagap 5y ago
There is no cover-up going on here, it's just that we know very little about preroman and especially preetruscan populations of Italy. There is a wikipedia page[1] concerning megalithic architecture in Lazio (the region of Italy in whi
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by ginnungagap 5y ago
I wasn't aware this is a named phenomenon, thanks!
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by ginnungagap 5y ago
Definitely this, everyone sounds like an expert to me in the programming/engineering/humanities threads until I see a one about mathematics (I am a mathematician) and I remember that it is just my ignorance of the other topics pre
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by ginnungagap 5y ago
It also depends where you are in Europe, in Italy gas is still by far the most common way to cook
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by ginnungagap 7y ago
I'd say it still applies, even when reading a textbook going through the exercises is crucial
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by ginnungagap 7y ago
Would be nice to have a writeup with some details on how this disproves Connes embedding conjecture understandable for operator algebraists with little (quantum) computing background
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by ginnungagap 7y ago
In fact it's an open problem (very likely the oldest open problem in set theory) whether in every model of not AC there is a set with such a paradoxical partition! Here's a nice introduction to the problem by Asaf Karagila http:&
82.
by ginnungagap 7y ago
When we say that a statement P is independent of ZFC what we're really saying is "if ZFC is consistent, then P is independent of ZFC (hence both ZFC+P and ZFC+not P are consistent)". This is the only sensible way to interpret
83.
by ginnungagap 7y ago
It gets worse than that, by Easton's theorem, except for two mild restrictions provable on ZFC, the function that sends a regular cardinal to the cardinality of its powerset can be anything
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by ginnungagap 7y ago
Either you show that your statement P is equivalent to another known independent one or you need to produce a model of P and a model of not P. The two main techniques to produce new models of ZFC are inner models, that is submodels of a mod
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by ginnungagap 7y ago
If the continuum hypothesis (CH) holds then there is none. Assume that CH fails and well order the reals. An initial segment of length omega_1 is an example of such a set.
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by ginnungagap 7y ago
Another famous example of that kind is the existence of outer automorphisms of the Calkin algebra, which is a simple question about a naturally occuring object which turned out to be independent of ZFC by work of Farah and Weaver. Topology
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by ginnungagap 7y ago
Why a 3-category in particular?
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by ginnungagap 7y ago
This talks about adjoints of operators, which is where the category theory terminology comes from, but a pretty different concept overall
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by ginnungagap 7y ago
They do different things, ( and ) work just fine, but they are standard sized, while \left( and \right) adapt to the size of what's inside. It's kinda uncomfortable to write, but I guess it is done this way because the \left and \
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by ginnungagap 7y ago
The post you linked says that Tao was teaching the class and made notes for it since he didn't like the book

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