>
> On Tue, 31 Aug 1999, Russell Standish wrote:
> > [JM wrote]
> > > > > I use the terms SSA, ASSA, RSSA only because others on the list
> > > > > insist on using them. In my opinion the 'ASSA' is a tautology and not
> > > > > an assumption, while the 'RSSA' is an error.
> > > >
> > > > ASSA <!=> SSA. ASSA makes explicit the sample set over which SSA is
> > > > applied. So does RSSA (the sample set being different to the ASSA
> > > > case). A third possibility is SSA of birth rank, as used in Leslie
> > > > Carter's arguments.
> > >
> > > Ok. Nothing in your paragraph contradicts what I said.
> >
> > Then maybe I misunderstood you. A tautology is a term with redundant
> > parts, ie it is equivalent to some subset of itself. I took your
> > statement that "ASSA is a tautology" to mean that ASSA is equivalent
> > to SSA (symbolically ASSA <=> SSA). I directly contradict this in my
> > first sentence.
>
> >From WordNet (r) 1.6 (wn)
>
> tautology n 1: (in logic) a statement that is necessarily true; "the
> statement `he is brave or he is not brave' is a tautology" 2: useless
> repetition; "to say that something is `adequate enough' is a tautology"
>
> I was not aware of meaning 2 of the word, while I have
> frequently encountered the word used for meaning 1.
>
The definition I gave and the one you quoted are equivalent.
> - - - - - - -
> Jacques Mallah (jqm1584.domain.name.hidden)
> Graduate Student / Many Worlder / Devil's Advocate
> "I know what no one else knows" - 'Runaway Train', Soul Asylum
> My URL: http://pages.nyu.edu/~jqm1584/
>
>
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Dr. Russell Standish Director
High Performance Computing Support Unit,
University of NSW Phone 9385 6967
Sydney 2052 Fax 9385 6965
Australia R.Standish.domain.name.hidden
Room 2075, Red Centre
http://parallel.hpc.unsw.edu.au/rks
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Received on Thu Sep 02 1999 - 17:04:45 PDT