
Re: Problem from Willard's _General Topology_
Posted:
Jan 10, 2014 7:11 PM


On 01/10/2014 06:05 PM, Brian M. Scott wrote: > On Fri, 10 Jan 2014 10:35:43 0600, "Michael F. Stemper" > <michael.stemper@gmail.com> wrote in > <news:lap7hg$2hb$1@dontemail.me> in alt.math.undergrad:
>> And, in general, <x_1, ..., x_n> = >> { {x_1}, ..., {x_1, ..., x_n} } > >> Is this a valid definition of "ordered ntuple"? > > It doesn?t quite work: since > > {0, 1, 1} = {0, 0, 1} = {0, 1}, > > the set {{0}, {0,1}, {0,1}} represents both <0, 1, 0> and > <0, 1, 1>.
Blast! You're right, of course. Thanks for your help.
 Michael F. Stemper Always use apostrophe's and "quotation marks" properly.

