> On 21 Jun 2019, at 14:38, Philip Thrift <[email protected]> wrote: > > > > On Friday, June 21, 2019 at 6:22:06 AM UTC-5, Bruno Marchal wrote: > >> On 20 Jun 2019, at 19:42, Philip Thrift <[email protected] <javascript:>> >> wrote: >> >> >> >> On Thursday, June 20, 2019 at 12:32:20 PM UTC-5, Philip Thrift wrote: >> >> >> On Thursday, June 20, 2019 at 10:28:14 AM UTC-5, Bruno Marchal wrote: >> >>> On 20 Jun 2019, at 12:52, Philip Thrift <[email protected] <>> wrote: >>> >>> >>> >>> Logic is mere heuristics. >> >> I don’t understand this. >> >> Logic is a branch of mathematics, which can be used correctly or >> incorrectly, like all branches of mathematics. >> >> In that branche, we study many different sorts of logics, like in Algebra we >> study many different sorts of algebraic systems. >> >>> >>> It is not Holy Writ the LORD God wrote into Stone Tablets. >> >> >> Of course. Especially that there are a lot of Logics. But in computer >> science and in math we use classical logic, not because it would be more >> true, but because it is simpler, even to explain the non classical logics, >> that we might need in some domain. >> >> >> Bruno >> >> >> >> >> Logic is a branch of mathematics [correct], and mathematics is a genre of >> fiction. >> >> @philipthrift >> >> >> >> >> Isn't it odd [back to the Topic] that some think that the Bible and Qur'an >> are (texts in a genre of) fiction, but mathematical texts are not? > > The bible suggests that PI is equal to 3. > > Measurement, or calculation suggests that PI is bigger than 3. Reflexion and > reasoning explains that PI is not rational, nor algebraical, etc. > > I understand that mathematics is concerned with immaterial things. Calling > them fiction a priori beg the question of the Aristotelian/platonic divide. > Fiction usually refer to false, and so might be abusive in this context. > > Bruno > > > > It seems like a funny term to apply.
Funny? OK. But, Imo, also misleading, especially in this “postmodern era” which relativize truth too much, except the material universe, which, when we assume Mechanism, is precisely more fictional than arithmetic. Bruno > Hartry Field [1] introduced it as a "philosophy of mathematics", and Mark > Balaguer [2] gave it prominence in a book and the SEP. > > Fictionalism is the most pragmatic alternative to Platonism (as Balaguer > argues). One can be a constructivist or formalist in some way, but > fictionalism leaves all of mathematics intact, except for its semantics. > > [1] https://as.nyu.edu/content/nyu-as/as/faculty/hartry-field.html > <https://as.nyu.edu/content/nyu-as/as/faculty/hartry-field.html> > [2] http://www.calstatela.edu/faculty/mark-balaguer > <http://www.calstatela.edu/faculty/mark-balaguer> > > @philipthrift > > > > -- > 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 [email protected] > <mailto:[email protected]>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/everything-list/882ae719-b41c-423f-8492-f0b16fbaca79%40googlegroups.com > > <https://groups.google.com/d/msgid/everything-list/882ae719-b41c-423f-8492-f0b16fbaca79%40googlegroups.com?utm_medium=email&utm_source=footer>. -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/88C6541C-1FB8-4DAB-8483-ABE5EE136508%40ulb.ac.be.
