On Mon, Aug 20, 2018 at 09:03:04PM -0700, Brent Meeker wrote: > > We must be looking at some different enumeration of the argument. I have: >
Clearly. I was referring to the enumeration in the SANE2004 paper, which is kind of canonical: 7) The seventh step introduces the Universal Dovetailer (UD). Let N denotes the set of natural numbers. A function from N to N is said to be total if it is defined on all natural numbers. A function is said to be computable iff there is a programme FORTRAN which computes it12. Church thesis (CT) makes the particular choice of FORTRAN irrelevant. CT claims that all computable functions, total or not, are computed by algorithm expressible in FORTRAN. In particular all total computable functions are computed by such FORTRAN program... 8) Yes, but what if we don’t grant a concrete robust physical universe? Up to this stage, we can still escape the conclusion of the seven preceding reasoning steps, by postulating that a ‘‘physical universe’’ really ‘‘exists’’ and is too little in the sense of not being able to generate the entire UD*, nor any reasonable portions of it, so that our usual physical predictions would be safe from any interference with its UD-generated ‘‘little’’ computational histories. Such a move can be considered as being ad hoc and disgraceful. It can also be... -- ---------------------------------------------------------------------------- Dr Russell Standish Phone 0425 253119 (mobile) Principal, High Performance Coders Visiting Senior Research Fellow hpco...@hpcoders.com.au Economics, Kingston University http://www.hpcoders.com.au ---------------------------------------------------------------------------- -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
