John, Jerry, list
I feel utterly surprised. It never occurred to me that LEM could be
taken as a 'technical' term. - Thank you Jerry for correcting that
mistake.
The three basic assumtions of modern logic are, of course, intertwined.
If LEM is put questionable, the other two simultaneously b
Jerry,
I was making a narrow, noncontroversial point.
LEM plays a central role in triad, the logic of logic, the logic
of mathematics and the logic of science.
LEM is an assumption in many versions of logic. If you prefer
a 3-valued logic, feel free to adopt it. It's your choice.
[JFS] Y
List, John:
Comments on “technical” aspects of Law of Excluded Middle (LEM) are inserted.
> On Oct 12, 2017, at 3:15 PM, John F Sowa wrote:
>
> Jerry and Kirstima,
>
> Jerry
>> the issue of the "Law of the Excluded Middle” is a red herring to me.
>
> Kirstima
>> LEM presents one of the three
Jerry and Kirstima,
Jerry
the issue of the "Law of the Excluded Middle” is a red herring to me.
Kirstima
LEM presents one of the three basic misassumptions in modern logic.
LEM is a convention used in a technical (mathematical) sense.
It's important to keep the conventions distinct from ord
List , John:
I wrote:
"Because it violates the common sense of the meaning of natural language terms
in the premise.”
John, your introducing the issue of the "Law of the Excluded Middle” is a red
herring to me. Let me add a word or two to clarify my intent.
My concern is rather esoteric from
List, John, Jerry and Jon,
LEM presents one of the three basic misassuptions in modern logic. For
all I know CSP and Brouwer came to similar conclusions independently.
They also offered their grounds and conclusions very differently.
There was a deep change in math and locic during and after
List, Jerry and John
Highly problematic, I agree. But it is not true that any
contradiction,or all contradictions imply everything. Not logically, not
really.
Everything does not mean the same as anything. For CSP anything remains
an open (vague) question UNTILL further studies & determinat
Lectures of 1903
-Original Message-
From: John F Sowa [mailto:s...@bestweb.net]
Sent: 11-Oct-17 02:21
To: Peirce List
Subject: Re: [PEIRCE-L] Lowell Lecture 1.8
Jerry LRC, Jon AS, List,
Jerry
>> [JFS] Since a contradiction is always false, a contradiction implies
>&g
Jerry LRC, Jon AS, List,
Jerry
[JFS] Since a contradiction is always false, a contradiction
implies everything.
Everything? While this assertion is widely repeated in
the literature, I think it is highly problematic.
It's widely repeated because it is a fundamental assumption
of most versio
List, John:
> On Oct 10, 2017, at 1:17 PM, John F Sowa wrote:
>
> Since a contradiction is always false, a contradiction implies
> everything.
Everything?
While this assertion is widely repeated in the literature, I think it is highly
problematic.
Because it violates the common sense of the
2 ... which was also left unpublished by the CP editors,
probably for the same reason!
Gary f.
-Original Message-
From: John F Sowa [mailto:s...@bestweb.net]
Sent: 9-Oct-17 16:38
To: peirce-l@list.iupui.edu
Subject: Re: [PEIRCE-L] Lowell Lecture 1.8
On 10/9/2017 2:28 PM, g...@gnusystems.ca wr
On 10/9/2017 2:28 PM, g...@gnusystems.ca wrote:
I never would have guessed that “what we mean by “/not/” is
“every proposition would be true if it were.”
That comment can only be true if there is no middle option --
i.e., a stone is either hard or not hard AND there is no
possibility of being n
it!
Gary f.
From: g...@gnusystems.ca [mailto:g...@gnusystems.ca]
Sent: 8-Oct-17 07:29
To: 'Peirce List'
Subject: [PEIRCE-L] Lowell Lecture 1.8
Continuing from Lowell 1.7 (CP 1.614, EP2:254):
615. Consider, for a moment, what Reason, as well as we can today conceive it,
I think this is a clear outline of the nature of Reason as the
causal Force of the Universe.
With the description of Mind in 4.551, we can see that Reason/Mind
is:
-a universal Force; it is not a thing-in-itself, i.e., it is a
Generality rather than an existential parti
Continuing from Lowell 1.7 (CP 1.614, EP2:254):
615. Consider, for a moment, what Reason, as well as we can today conceive it,
really is. I do not mean man's faculty which is so called from its embodying in
some measure Reason, or Νοῦς, as a something manifesting itself in the mind, in
the h
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