[lit-ideas] Re: Ruth Barcan Marcus 1921-2012

  • From: Jlsperanza@xxxxxxx
  • To: lit-ideas@xxxxxxxxxxxxx
  • Date: Sat, 17 Mar 2012 00:49:19 -0400 (EDT)


In a message dated 3/15/2012 9:13:12 P.M. UTC-02, rpaul@xxxxxxxx  writes:
http://tinyurl.com/7gp5rfj

>Philosopher-Logician
 
Interesting sobriquet, if that's the word, 'sobriquet'. I collect  
sobriquets for Grice. In ONE source, he is referred to as "British logician";  
the 
OED used to have him as "linguist". He was of course a _plain_ philosopher,  
simpliciter, if that's the word. Platts called Grice, "a philosopher's  
philosopher", which is confusing (it confuses me). 
 
In the body of the article, the 'philosopher-logician' of the title becomes 
 a plain 'philosopher':
 
>Ruth Barcan Marcus, a philosopher esteemed for her 
>advances in logic, a traditionally male-dominated subset of a  
traditionally male-dominated field, died on >Feb. 19.
 
Note the sarcasm: 'subset' -- that's a male-dominated choice of a noun,  
then? Note the sarcasm: a male-dominated field may have  a non-male-dominated 
subset, and so on.
 
>she retired in 1992 as the Reuben Post Halleck professor of philosophy.  

Yale can confuse. Oxford has it easy: all professorship chairs start with  W
Wykeham -- prof of logic.
Waynflete -- prof of metaphysics
White -------- prof of ethics
Wilde -------- prof of mental philosophy.
 
----
 
>For a woman of Professor Marcus’s generation to elbow her way into the  
field, ... was almost unheard of.
 
It would be interesting to trace about the earliest female logician ever. I 
 think the first Greek female philosopher ever was good at logic, too?
 
 >“The rest of philosophy became less male dominated, less macho,  more 
quickly than logic,” Stephen Neale, said in a telephone interview. “She was  
working in a field which was really run by these giants.”
 
--- I wonder if that's what he said, in the telephone interview. Perhaps he 
 meant, "less male dominated, less 'macho'...": i.e. perhaps he used scare 
quotes  for 'macho', but then what can a telephone interview know?
 

"Quantified logic centers on the roles of words of quantification, like  “
all,” “every” and “some,” in logical statements."
 
I have written, elsewhere, of the marriage of Grice and Barcan-Marcus.  
Grice was obsessed with all those words -- and MORE. In later years, Grice  
became obsessed, in work with G. Myro, with '=', and it is with '=' that R. B.  
Marcus's works relates more. For Grice, '='-statements can be 'relative', 
in  ways that Marcus allows.
 
>An example of a quantified statement is the sentence “All humans are  
mortal.” 
>The sentence “Necessarily, humans are mortal” is an example of  a modal 
statement. 

Grice prefers:
 
Humans MUST be mortal.
 
What's the good of a modality if you don't have a short Anglo-Saxon way to  
express it? For Grice, the modalities are:

OUGHT
MUST
SHOULD
MAY
 
Humans may be mortal.
 
There is something heavy about 'necessarily'. Plus, it confuses, in that it 
 may be taken, wrongly, as a sentence modifier, as in:

"Hopefully, we'll  find the house."
 
----
 
 
"Quine, ... argued that combining quantifiers and modals produced  
unintelligible results."
 
Grice and Strawson who hosted Quine at Oxford tried to prove Quine wrong,  
and they succeeded!
 
"Such issues"
 
 
as "must" vs. "necessarily"
 
"may seem of small consequence,"
 
the NYT explains,
 
"but the need to talk about them is necessarily the meat of philosophical  
logic."
 
Or pragmatics, as Grice prefers. Grice's disciple, Noel Burton-Roberts,  
argued for a pragmatic-implicature approach to the square of modalities:
 
che sera sera.
 
What must be must be
What may be, must it be too? ---- It ain't necessarily so.
What must be, may it be too? --- YES! It must!
 
People use 'must' and 'may' as in a square of opposition, but surely  if
 
"You must do it", then, "You MAY do it."
 
----
 
 
 
"Under her formula, “the second one entails the first one,” Professor 
Neale  explained. “That is, if all humans are necessarily mortal, then 
necessarily, all  humans are mortal.”"
 
----

I'm glad McEvoy took upon this, and that Palma commented on it.
 
 
 
"In other work, Professor Marcus examined the philosophical arguments  
underpinning moral dilemmas."
 
The wiki entry is pretty complete and adds to the great philosophical  
lecture in areas OTHER than the Barcan formula.
 
keywords: The Grice-Myro theory of relative identity.
Barcan Marcus and Grice.
 
Comments from wiki then:

"Ruth Barcan Marcus (b. 1921, d. February 19, 2012) was a philosopher  and 
logician who developed the "Barcan formula". 
 
"Barcan Marcus was a pioneering figure in the quantification of modal logic 
 and the theory of direct reference." 
 
She wrote seminal essays on 
 
identity, 
 
essentialism, 
 
possibilia, 
 
belief, 
 
moral conflict as well as some critical historical studies.
 
"Education: B.A., New York University (1941), M.A., Yale University (1942), 
 Ph.D., Yale University (1946). Posts: Professor of philosophy and founding 
 department chair, University of Illinois at Chicago (1962–1970), Professor 
of  philosophy, Northwestern University (1970–1973), Halleck professor of  
philosophy, Yale University (1973–1991), Professor emerita and senior 
research  scholar, Yale University 1992-2012); Visiting distinguished 
professor,  
University of California, Irvine (one quarter each year, 1992–97), Chair of 
the  Board of Officers, American Philosophical Association (1976–83), 
President,  Association for Symbolic Logic (1983–86), President, International 
Institut de  Philosophie (1989–92) and Presidente Honoraire (continuing), 
Served on various  visoring committees for programs and departments, Serves on 
various editorial  boards."
 
"Ruth Barcan Marcus' earliest published work was the publication of the  
first axiomatic study of modal logic with quantifiers."
 
"These three ground-breaking articles were 
 
1) "A Functional Calculus of First Order Based on Strict Implication",  
Journal of Symbolic Logic (JSL, 1946), 
 
2) "The Deduction Theorem in a Functional Calculus of First Order Based on  
Strict Implication" (JSL, 1946), 
 
3) "The Identity of Individuals in a Strict Functional Calculus of Second  
Order", (JSL, 1947). 
 
The three articles are published under Marcus' maiden name: 
 
"Ruth C. Barcan." 
 
The widely discussed Barcan Formula is introduced as an axiom in QML. 
 
"The papers of 1946 and 1947, were the first systems of quantified modal  
logic, which extended some propositional modal systems of C. I. Lewis to 
first  and second order."
 
"A major accomplishment in the development of 20th century logic. "
 
Lewis gives Marcus special recognition in his 
 
"Notes on the Logic of Intension", 
 
originally printed in Structure, Method, and Meaning: Essays in Honor of  
Henry M. Sheffer (New York, 1951). 
 
Here, Lewis recognizes Barcan Marcus as the first logician to extend  
propositional logic as a higher order intensional logic.
 
Barcan Marcus proposed the view in the philosophy of language according to  
which proper names are what Marcus termed mere 
 
"tags". 
 
("Modalities and Intentional Languages" (Synthese, 1961)(and elsewhere). 
 
These "tags" are used to refer to an object (the bearer of the name). 
 
The meaning of the name is regarded as exhausted by this referential  
function. 
 
This view contrasts for example with late B. A. W. Russell description  
theory of proper names as well as J. R. Searle's cluster description theory of  
names which prevailed at the time. 
 
This view of proper names (presented in 1962 with Quine as commentator) has 
 been identified by Quentin Smith with the theory of reference given in 
Saul  Kripke's Naming and Necessity. 
 
However, in a recent laudatio to Ruth Barcan Marcus, T. Williamson  writes:
 
"One of the ideas in them that resonates most with current philosophy of  
language is that of proper names as mere tags, without descriptive  content."
 
"This is not Kripke's idea of names as rigid designators, designating the  
same object with respect to all relevant worlds, for ‘rigidified’ definite  
descriptions are rigid designators but still have descriptive content."
 
"Rather, it is the idea, later developed by David Kaplan and others, that  
proper names are directly referential, in the sense that they contribute 
only  their bearer to the propositions expressed by sentences in which they  
occur."
 
Marcus formally proved the necessity of identity in 1946 and informally  
argued for it in 1961 and thereafter thus rejecting the possibility of  
contingent identity. 
 
See Journal of Symbolic Logic, (1947) 12: pp 12–15
 
Marcus prefers an interpretation where the domain of the interpretation  
comprises individual entities in the actual world. 
 
She also suggests that for some uses an alternative substitutional  
semantics is warranted.
 
She provides arguments against possibilia. See "Dispensing with Possibilia" 
 (Proceedings of the American Philosophical Association, 1975–76); 
 
"Possibilia and Possible Worlds" (Grazer Philosophische Studien, 1985–86).  
T
 
Marcus defines a consistent set of moral principles as one in which there  
is some "possible world " in which they are all obeyable. 
 
That they may conflict in the actual world is not a mark of inconsistency. 
 
As in the case of necessity of identity, there was a resistance to this  
interpretation of moral conflict. 
 
Her argument counts against a widely received view that systems of moral  
rules are inevitably inconsistent.
 
It is proposed that believing is a relationship of an agent to a possible  
state of affairs under specified internal and external circumstances. 
Assenting  to a quoted sentence (the disquotation account of belief) is only 
one 
behavioral  marker of believing. 
 
Betting behavior is another. 
 
The wholly language-centered account of belief (e.g. Davidson) is rejected. 
 
Where an agent behaves as if an impossibility obtained Marcus proposes that 
 under those circumstances the agent, on the disclosure of the 
impossibility  should say that she only claimed to believe an impossibility. 
 
In much the same way, when a mathematician discovers that one of his  
conjectures is false, and since if it is mathematically false it is impossible, 
 
he would say he only claimed to believe it. Odd as this proposal is, it is  
analogous to the widely accepted principle about knowing: if we claim to 
know P,  and P turns out false, we do not say we used to know it, we say we 
were mistaken  in so claiming.
 
The GRICE-MYRO theory of relative identity pertains to Barcan's  
metaphysics.
 
Aristotelian Essentialism is concerned with properties which Marcus defines 
 in the context of a modal framework. 
 
One proposal is that a property is essential if something has it, not  
everything has it, if something has it then it has it necessarily, and it is 
not 
 wholly individuating e.g. a natural kind property. 
 
It is otherwise claimed by Quine and others that modal logic or semantics  
is committed to essentialist truths. 
 
Marcus argues informally that there are interpretations of some modal  
systems in which all essentialist claims are false. 
 
Terence Parsons later formally proved this result.
 
An alternative to Tarskian (model theoretic) semantics is proposed for some 
 uses where "the truth conditions for quantified formuli are given purely 
in  terms of truth with no appeal to domains of interpretation". 
 
(Later called by others "truth value semantics".) 
 
She shows that the claim that such a semantics leads to contradictions is  
false. Such a semantics may be of interest for mathematics e.g. Hartry 
Field, or  for fictional discourse. 
 
Objectual quantification is required for interpretation of identity and  
other metaphysical categories.
 
Awards: -- Guggenheim Fellow (1952), National Science Foundation Fellow  
(1963)
Rockefeller Foundation Residency (Bellagio, 1973 and 1990)
Center  for Advanced Study in the Behavioral Sciences (1979)
University of Edinburgh  Fellow, Humanities Institute (1983)
Wolfson College of Oxford University,  Visiting Fellow (1985 and 1986)
Clare Hall of Cambridge University, Visiting  Fellow (1988)
National Humanities Center, Mellon Fellow (1992–93)
Fellow,  American Academy of Arts and Sciences(1977--)
Medal of the Collège de France  (1986)
Doctor of Humane Letters, honoris causa, University of Illinois at  Chicago 
(1995)
Wilbur Cross Medal, Yale University (2000)
Lauener Prize in  Analytic Philosophy, Lauener Foundation, 2007-08.
Permanent Member of the  Common Room, Clare Hall (1986-)
Phi Beta Kappa (1941)
Membre, Institut  International de Philosophie, Presidente 1989-92, 
President Honoraire  1992-
Quinn Prize, American Philosophical Association 2007, for service to  the 
profession
Dewey Lecture, APA, Dec 2009
 
---
 
Work:
 
The Logical Enterprise, ed. with A. Anderson, R. Martin, Yale, 1995
 
Logic, Methodology and Philosophy of Science, VII, eds. R. Barcan Marcus et 
 al., North Holland, 1986
 
"Modalities: Philosophical Essays".
Oxford University Press, 1993.  
Paperback; 1995 
(contains many of Marcus's important papers)
 
[edit] See also
 
American philosophy
List of American philosophers
[edit] References  and notes
 
1.^ Timothy Williamson's Tribute to Ruth Barcan Marcus on the Occasion of  
Her Receipt of the Lauener Prize, Leiter Reports: A Philosophical Blog, 
October  14, 2008.
 
2.^ See "Moral Dilemmas and Consistency" (Journal of Philosophy, 1980)(and  
frequently published elsewhere)
 
3.^ See "A Proposed Solution to The Puzzle About Belief" (Foundations of  
Analytic Philosophy in Midwest Studies, 1981) and "Rationality and Believing 
the  Impossible" (The Journal of Philosophy, 1983 and elsewhere).
 
4.^ Philosophical Review, 78 (1969).
 
[edit] External linksYale University philosophy department biography: Ruth  
Barcan Marcus
 
Encyclopedia of Jewish Women: Ruth Barcan Marcus
 
Persondata 
Name Marcus, Ruth Barcan 
Alternative names 
Short  description 
Date of birth 1921 
Place of birth 
Date of death  
Place of death 
 
Categories: 1921 births2012 deaths20th-century philosophers21st-century  
philosophersAmerican educatorsAmerican philosophersAmerican philosophy  
academicsWomen philosophersPhilosophers of languageAmerican JewsJewish  
philosophersAnalytic philosophersAmerican logiciansNew York University  
alumniYale 
University alumniYale University facultyUniversity of Illinois at  Chicago 
facultyFellows of Clare Hall, CambridgeFellows of Wolfson College,  Oxford

---
 
Speranza
 
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