p0llard

5 ms·

1.
by p0llard 6y ago
> Gödel's statements are true in all models This is wrong, and I said the exact opposite of this: there are non-standard models of PA in which G_F is false. There is a fundamental difference between Gödel sentences and AoC, which
2.
by p0llard 6y ago
> Question: Can a sentence be provably true in one arithmetic system but not another? The answer is yes! ZFC |- AC but ZF |/- AC and both ZFC and ZF can encode arithmetic. But there's an issue here: no-one real
3.
by p0llard 6y ago
> I feel like you may be arguing semantics Yeah, I am; it really depends on how you define "true". I prefer this to be interpreted as "true in all models" so sentences are "true" when they are tautological c
4.
by p0llard 6y ago
> There are true statements that are unprovable within the system. I really don't like this, and it verges on being flat-out incorrect: the first incompleteness theorem does not say this at all. It says that there are sentences (a
5.
by p0llard 6y ago
> Godel-type unprovability is separate from logical independence What do you mean by this? The Goedel sentence of a system is logically independent from the system by the standard meaning of "logical independence".
6.
by p0llard 6y ago
> true but unprovable under the axioms xyz? Careful: we don't really talk about things which are "true but unprovable" in first-order logics. By Goedel's completeness theorem, if a statement is true in all models of
7.
by p0llard 6y ago
> And, you realize that the US has 300m people, correct? You will have to compare per-capita stats, not total numbers. The UK has a population of almost 70MM. The factor of ~5 needed to account for population pales in comparison to the t
8.
by p0llard 6y ago
> According to a judge or a police officer, probably not I'd naively hope that a judge wouldn't side with a police officer here, but I think the fact that resisting arrest is inherently criminal is a pretty big flaw in the US l
9.
by p0llard 6y ago
I live in a country where we don't inject people with ketamine on the street, nor do "criminals run amok". We also don't have armed gangs imposing "their own idea of a justice system", and we have fewer polic
10.
by p0llard 6y ago
> Want to work with an IP vendor whose sales are not part time lawyers? Go for ARM Interested in this comment: were MIPS/Imagination known for being particularly litigious around licensing?
11.
by p0llard 6y ago
> Why would you guess? Because I'm basing it on my experience doing research in PLT, but this is of course purely anecdotal and my areas of research interest lie away from the likes of Haskell, so I would not wish to make a false cl
12.
by p0llard 6y ago
Yes it is, but if "leading functional language" means "on the cutting edge of research into functional languages" then that might well be used to describe Haskell. If leading refers to overall usage in industry, then sur
13.
by p0llard 6y ago
Yeah I think you're definitely right, and Algorithm W is how HM was introduced to me when I studied it. kevincox's comment sums up my misunderstanding.
14.
by p0llard 6y ago
In general they seem to do a good job of missing out books which cover the mathematical basis of theoretical computer science; if the aim is to provide a starting point for humanity to recover technical knowledge following some disaster, I&
15.
by p0llard 6y ago
Probably depends on the definition of leading; I'd guess that Haskell is probably used more than any other (Turing-complete, to exclude Gallina, etc.) functional language within programming language research, but you're right that
16.
by p0llard 6y ago
> There exist many type inference algorithms, the best known one is the so-called Algorithm W. Is this correct? I dug out Milner's paper [1] where he states that Algorithm J is more efficient (which was what I had been led to believ
17.
by p0llard 6y ago
When I said "incompatible at the physical level" I meant it in the OSI sense of an issue at physical protocol level. An electrical specification mismatch could easily cause hardware damage (but would be very hard to achieve unless
18.
by p0llard 6y ago
> tinker with advanced stuff requiring PCI-E chipsets What sort of things are you talking about here, out of interest? The only way you're going to wreck hardware is if you're attaching something completely incompatible at the
19.
by p0llard 6y ago
> He's working on the same ledger tech but centralised Cryptographic ledger technology has been around since forever (the 70s to be precise): just look at Git, SUNDR, etc. I believe he's specifically calling out firms working o
20.
by p0llard 6y ago
They aren't really targeting similar markets (at least from my perspective): pretty much any multinational firm can benefit from better corporate treasury management; cryptocurrencies are just one application of this technology, and St
21.
by p0llard 6y ago
Using cryptographic primitives to implement a non-productive asset is one thing; using cryptographic primitives as some kind of ledger goes back to the 70s, heck even Git uses Merkle trees.
22.
by p0llard 6y ago
What are you getting at? There's a pretty big difference between corporate treasury software and cryptocurrency scams? Unless you're trying to argue that anything related to finance is a scam? I don't see what point you'
23.
by p0llard 6y ago
> The former, as a general rule, does not create a derivative work. It's specifically called out in the GPL FAQ as something that does not create a derivative work. Could you point me in the direction of a court ruling establishing
24.
by p0llard 6y ago
> PostGIS via TCP From a legal perspective I'm unaware of any ruling which establishes a difference between components communicating via TCP and components communicating through function calls at the ABI level (e.g. linked libraries
25.
by p0llard 6y ago
> For example, if I build an extension which works with Chrome and Firefox, over a well-defined API, that's an independent work. AGPL/GPL/LGPL does not apply. > If I have two pieces of code which mutually rely on each o
26.
by p0llard 6y ago
> Google states that if, for example, Google Maps used PostGIS as its data store, and PostGIS used the AGPL, Google would be required to release the Google Maps code. This is not true. They would be required to release their PostGIS patc
27.
by p0llard 6y ago
> in the same way that a C program linked against glibc is not a derivative work of glibc I believe this is only as a result of the linking exception; I don't know if this has ever been tested, but my understanding was that linking
28.
by p0llard 6y ago
> These OEM EEPROMs are exposed to the external world, just like normal registers. > many hardware provides an explicit lock/unlock feature for protecting low-level configurations and registers Is this really enough? It seems tha
29.
by p0llard 6y ago
> Just let it happen and see what the attractor becomes for this large, dynamical system. I think the problem with this stance is that "this large, dynamical system" actually determines whether people have food to eat. Playing
30.
by p0llard 6y ago
> After all, Snowden sheltered in the ecudorian embassy for about a decade. I think you mean Assange? But yes, I don't think anyone should be especially surprised by this; although if this were a country with strong diplomatic ties

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