[Inquiry] Re: Kaina Stoicheia -- Discussion

[Jon Awbrey]

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KS.  Discussion Note 4

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JP = Jim Piat

Re: KS-DIS 3.  http://stderr.org/pipermail/inquiry/2005-December/003296.html
In: KS-DIS.    http://stderr.org/pipermail/inquiry/2005-December/thread.html#3272

Jim, Peirce List,

Replies interspersed.

JP: Would you give me an example of one of Peirce's genuine,
    necessary and sufficient, descripitions of a sign, and perhaps
    for the purpose of contrast one of his non-genuine definitions
    that fails to meet these criteria.  Also would you give me the
    necessary and sufficient conditions for discerning which is which.

So let me haul out the "Carnegie" definitions of a sign relation one more time,
and try to tell you why I think they ought to win friends and influence people:

Here's the first link that came up on Google:

SR.  Sign Relations
SR.  http://forum.wolframscience.com/showthread.php?threadid=647

| A sign is something, 'A',
| which brings something, 'B',
| its 'interpretant' sign
| determined or created by it,
| into the same sort of correspondence
| with something, 'C', its 'object',
| as that in which itself stands to 'C'.
|
| C.S. Peirce, NEM 4, pp. 20-21, cf. p. 54, also available here:
| http://members.door.net/arisbe/menu...csp/l75/l75.htm

More details on how the definition of a sign relation bears on
the definition of logic are given in the contexts of this text:

| On the Definition of Logic [Version 1]
|
| Logic will here be defined as 'formal semiotic'.
| A definition of a sign will be given which no more
| refers to human thought than does the definition
| of a line as the place which a particle occupies,
| part by part, during a lapse of time. Namely,
| a sign is something, 'A', which brings something,
| 'B', its 'interpretant' sign determined or created
| by it, into the same sort of correspondence with
| something, 'C', its 'object', as that in which it
| itself stands to 'C'. It is from this definition,
| together with a definition of "formal", that I
| deduce mathematically the principles of logic.
| I also make a historical review of all the
| definitions and conceptions of logic, and show,
| not merely that my definition is no novelty, but
| that my non-psychological conception of logic has
| 'virtually' been quite generally held, though not
| generally recognized. (CSP, NEM 4, 20-21).
|
| On the Definition of Logic [Version 2]
|
| Logic is 'formal semiotic'. A sign is something,
| 'A', which brings something, 'B', its 'interpretant'
| sign, determined or created by it, into the same
| sort of correspondence (or a lower implied sort)
| with something, 'C', its 'object', as that in
| which itself stands to 'C'. This definition no
| more involves any reference to human thought than
| does the definition of a line as the place within
| which a particle lies during a lapse of time.
| It is from this definition that I deduce the
| principles of logic by mathematical reasoning,
| and by mathematical reasoning that, I aver, will
| support criticism of Weierstrassian severity, and
| that is perfectly evident. The word "formal" in
| the definition is also defined. (CSP, NEM 4, 54).
|
| Charles Sanders Peirce,
|'The New Elements of Mathematics', Volume 4,
| Edited by Carolyn Eisele, Mouton, The Hague, 1976.

Partly I like these statements because they place the
matter of defining "sign" within its due contexts of
defining "formal" and defining "logic", which helps
to "comprehend", in both senses of that term, some
of the purposes and utilities of the definition.

With respect to the question of contrast, Peirce in this instance
explictly contrasts this definition with the most popular host of
sufficient but not necessary descriptions, namely, those that use
some of our common but typically unexamined introspections and/or
intuitions about our own psychological processes in order to fill
in a motley assortment of intuitive blind spots and logical holes
in the description.  This affords a significant correction to the
psychologically-biased descriptions, for instance, those deriving
from the "New List" account.

But probably the most important feature of this definition is that
it does not invoke too large a variety of undefined terms as a part
of its try at definition, and the few significant terms that it does
pass the buck to, like "correspondence" and "determination", are ones
for which we find fairly fast definitions elsewhere in Peirce's works.

The reason why these criteria are important is that they gives us what we need
in order to carry out any measure of deductive or necessary reasoning on the
basis of the definition alone -- the "standing on its own feet" character
of a genuine definition.

To be continued ...

Jon Awbrey

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