www.nettime.org Nettime mailing list archives
Jim on Sat, 14 Mar 2009 20:11:12 -0400 (EDT) |
[Date Prev] [Date Next] [Thread Prev] [Thread Next] [Date Index] [Thread Index]
Re: <nettime> Digital Humanities Manifesto |
What exactly do we mean by isomorphism? There is the mathematical definition of isomorphism where two systems are isomorphic if and only if there is one-to-one correspondence between the objects in each system AND the operations defined in each system mirror each other. The natural numbers are not just the sequence denoted by the decimal numerals 0,1,2,3,4,.... They are that plus the operations of addition, subtraction, multiplication and division along with the relationships of less than, greater than, and equals. Just because a collection of things can be numbered doesn't make that collection isomorphic to numbers in the strict mathematical sense. Furthermore although we may speak of binary and decimal numbers there are, strictly speaking, just numbers which have binary or decimal representations and these representations are strings of characters. So there are, strictly speaking, binary numerals but not binary numbers. When we learned our arithmetic in grade school we learned algorithms for operating on strings of decimal digits. Am I misunderstanding something? Flick Harrison wrote: > I think the main problem I have in this discussion is that I can't > say that a lightswitch is isomorphic with numbers. Nor is a telegraph > button. > On Mar 10, 2009, at 3:05 PM, inimino wrote: > > Isomorphism is not equality. > # distributed via <nettime>: no commercial use without permission # <nettime> is a moderated mailing list for net criticism, # collaborative text filtering and cultural politics of the nets # more info: http://mail.kein.org/mailman/listinfo/nettime-l # archive: http://www.nettime.org contact: nettime {AT} kein.org