Re: Gödel's Miracle and Why Conventionalism makes no sense in Computer Science

2020-05-30 Thread Bruce Kellett
On Sun, May 31, 2020 at 2:26 AM Bruno Marchal wrote: > > Let us write f_n for the function from N to N computed by nth expression. > > Now, the function g defined by g(n) = f_n(n) + 1 is computable, and is > defined on all N. So it is a computable function from N to N. It is > computable because

Re: Maxwell's Equations and Black Body radiation

2020-05-30 Thread Alan Grayson
On Friday, May 29, 2020 at 9:31:19 AM UTC-6, Alan Grayson wrote: > > > > On Friday, May 29, 2020 at 9:07:12 AM UTC-6, John Clark wrote: >> >> On Fri, May 29, 2020 at 10:46 AM Alan Grayson >> wrote: >> >> *> Clark, since you claim implicitly to having a serious understanding of >>> E, can you

Re: Gödel's Miracle and Why Conventionalism makes no sense in Computer Science

2020-05-30 Thread Bruce Kellett
On Sun, May 31, 2020 at 2:26 AM Bruno Marchal wrote: > Hi Philip, Hi Bruce, and possible others, > Nothing that you have written below proves arithmetical realism. One can say all these things in a purely conventionalist framework. Bruce If I remind well, you have defended the idea that

Re: Max Tegmark: AI discovers physics

2020-05-30 Thread 'Brent Meeker' via Everything List
You could ask the same question about physicists. Brent On 5/30/2020 12:51 PM, ronaldheld wrote: Is the AI discovering some Physics or just fitting data which produces equations that look like physical laws?      Ronald On Thursday, May 28, 2020 at 12:20:49 PM UTC-4, Philip Thrift wrote:

Re: Max Tegmark: AI discovers physics

2020-05-30 Thread ronaldheld
Is the AI discovering some Physics or just fitting data which produces equations that look like physical laws? Ronald On Thursday, May 28, 2020 at 12:20:49 PM UTC-4, Philip Thrift wrote: > > > https://www.facebook.com/461616050561921/posts/3107668729289960/ > > > We just posted a new AI

Re: Witten proposes planet 9 is small black hole

2020-05-30 Thread ronaldheld
Not certain those flyby micro craft will determine whether it exists. Ronald On Friday, May 29, 2020 at 7:48:58 PM UTC-4, Lawrence Crowell wrote: > > This is entertaining. He also coauthored a paper below on using photon > sails to perform this probing. > > LC > >

Re: Max Tegmark: AI discovers physics

2020-05-30 Thread Lawrence Crowell
I wrote a paper recently for publication on how the unital set of QM is a Cantor/fractal set that is fundamentally incomputable. This is a measure of nonlinearity a quantum system is forced into, say with gravitation or with einselection into classicality. To compute it requires a single

Gödel's Miracle and Why Conventionalism makes no sense in Computer Science

2020-05-30 Thread Bruno Marchal
Hi Philip, Hi Bruce, and possible others, If I remind well, you have defended the idea that mathematics is a language, and that there is no mathematical reality others that convention of language. In my opinion, this does not make sense, even without the Church-Turing thesis. But I realise

Re: Max Tegmark: AI discovers physics

2020-05-30 Thread Bruno Marchal
> On 28 May 2020, at 18:20, Philip Thrift wrote: > > > > > https://www.facebook.com/461616050561921/posts/3107668729289960/ > > > We just posted a new AI paper on how to automatically discover laws of > physics from raw video with machine learning. For example, we feed in the > video

Re: Max Tegmark: AI discovers physics

2020-05-30 Thread Philip Thrift
Of course nature's "theory" could be beyond a human's comprehension. It is assumed that there all that's needed can be reduced to human (mathematical) language that can be expressed in a few lines of LaTeX Math. @philipthrift On Friday, May 29, 2020 at 7:45:58 PM UTC-5, Lawrence Crowell