Rohit Jivanlal Parikh (born November 20, 1936) is an Indian-American mathematician, logician, and philosopher who has worked in many areas in traditional logic, including
recursion theory
Computability theory, also known as recursion theory, is a branch of mathematical logic, computer science, and the theory of computation that originated in the 1930s with the study of computable functions and Turing degrees. The field has since ex ...
and
proof theory
Proof theory is a major branchAccording to , proof theory is one of four domains mathematical logic, together with model theory, axiomatic set theory, and recursion theory. consists of four corresponding parts, with part D being about "Proof The ...
. He is a Distinguished Professor at
Brooklyn College
Brooklyn College is a public university in Brooklyn in New York City, United States. It is part of the City University of New York system and enrolls nearly 14,000 students on a campus in the Midwood and Flatbush sections of Brooklyn as of fall ...
at the
City University of New York
The City University of New York (CUNY, pronounced , ) is the Public university, public university system of Education in New York City, New York City. It is the largest urban university system in the United States, comprising 25 campuses: eleven ...
(CUNY).
Research
Parikh worked on topics like
vagueness
In linguistics and philosophy, a vague predicate is one which gives rise to borderline cases. For example, the English adjective "tall" is vague since it is not clearly true or false for someone of middling height. By contrast, the word " prime" ...
,
ultrafinitism,
belief revision
Belief revision (also called belief change) is the process of changing beliefs to take into account a new piece of information. The formal logic, logical formalization of belief revision is researched in philosophy, in databases, and in artifici ...
,
logic of knowledge,
game theory
Game theory is the study of mathematical models of strategic interactions. It has applications in many fields of social science, and is used extensively in economics, logic, systems science and computer science. Initially, game theory addressed ...
and
social software (social procedure). This last area seeks to combine techniques from logic, computer science (especially logic of programs) and game theory to understand the structure of social algorithms.
Personal life and politics
Rohit Parikh was married from 1968 to 1994 to Carol Parikh (née Geris), who is best known for her stories and biography of
Oscar Zariski, ''The Unreal Life of Oscar Zariski''.
Parikh is a nontheist opposing abortions. To fight abortions he joined the Atheist and Agnostic Pro-Life League.
In 2018, a Facebook post by Parikh, called for deportation of all illegal immigrants, writing, "I do believe that everyone who is illegally here should be deported but that the US should support them in their home country." Parikh further claims in the Facebook post that Hispanic immigrants are insufficiently educated compared to Indian immigrants like him, leading Brooklyn College students to public protests and calls for the university to discipline him.
The president of Brooklyn College
Michelle Anderson called his remarks "antithetical to the fundamental values of Brooklyn College." Defending his position in an interview to a
CW-affiliate
WPIX
WPIX (channel 11) is a television station in New York City, serving as the ''de facto'' flagship of The CW Television Network. Owned by Mission Broadcasting, the station is operated by CW majority owner Nexstar Media Group under a local market ...
, Parikh claimed he had not meant that Hispanics in general were dumber than Indians in general, but rather that his comparison of intellectual abilities of Hispanics and Indians had applied only to those who had immigrated to the United States. "There are a lot of stupid people in India but they don't come here," he explained.
Posts
*Editor, International Journal of the Foundations of Computer Science, 1990–1995
*Editor,
Journal of Philosophical Logic, 2000–2003
Awards and recognition
*
William Lowell Putnam Mathematical Competition
The William Lowell Putnam Mathematical Competition, often abbreviated to Putnam Competition, is an annual list of mathematics competitions, mathematics competition for undergraduate college students enrolled at institutions of higher learning in th ...
Prize Winner, 1955, 1956,
1957
*Gibbs Prize, Bombay University, 1954
Notable students
Parikh's doctoral students include
Alessandra Carbone and
David Ellerman.
Academic and research appointments
*Distinguished Professor, City University of New York, (Brooklyn College and CUNY Graduate Center), 1982–present
*Professor, Mathematics, Boston University, 1972–1982
*Visiting Professor, Mathematics, Courant Institute, 1981
*Associate Professor, Mathematics, Boston University, 1967–1972
*Visiting Associate Professor, Mathematics, State University of New York at Buffalo, 1971–1972
*Lecturer, Bristol University, 1965–1967
*Reader, Panjab University, 1964–1965
*Instructor, Stanford University 1961–1963
*Visiting Appointments at Caltech, ETH Zurich, Massachusetts Institute of Technology, Stanford, and
Tata Institute of Fundamental Research
Tata Institute of Fundamental Research (TIFR) is a leading research Institute under the Department of Atomic Energy of the Government of India. It is a public deemed university located at Navy Nagar, Colaba in Mumbai. It also has a centres in ...
Bombay
Main publications
*Existence and Feasibility in Arithmetic, Journal of Symbolic Logic 36 (1971) pages 494–508.
*On the Length of Proofs, Transactions of the
American Mathematical Society
The American Mathematical Society (AMS) is an association of professional mathematicians dedicated to the interests of mathematical research and scholarship, and serves the national and international community through its publications, meetings, ...
177 (1973) pages 29–36.
*(With M. Parnes) Conditional Probability can be Defined for Arbitrary Pairs of Sets of Reals,
Advances in Mathematics
''Advances in Mathematics'' is a peer-reviewed scientific journal covering research on pure mathematics. It was established in 1961 by Gian-Carlo Rota. The journal publishes 18 issues each year, in three volumes.
At the origin, the journal aimed ...
9 (1972) pages 520–522.
*(With D.H.J. de Jongh) Well Partial Orderings and Hierarchies, Proc. Kon. Ned. Akad. Sci Series A 80 (1977) pages 195–207.
*(With D. Kozen) An Elementary Completeness Proof for PDL Theoretical Computer Science 14 (1981) pages 113–118.
*The Problem of Vague Predicates, in Logic, Language and Method Ed. Cohen and Wartofsky, Reidel (1982) pages 241–261.
*The Logic of Games and its Applications, Annals of Discrete Math., 24 (1985) pages 111–140.
*(With R. Ramanujam) Distributed Processing and the Logic of Knowledge, in Logics of Programs, Springer Lecture Notes in Computer Science, 193 pages 256–268.
*Communication, Consensus and Knowledge, (with P. Krasucki), Jour. Economic Theory 52 (1990) pages 178–189.
*Knowledge and the Problem of Logical Omniscience ISMIS- 87 (International Symposium on Methodology for Intelligent Systems), North Holland (1987) pages 432–439.
*Finite and Infinite Dialogues, in the Proceedings of a Workshop on Logic from Computer Science, Ed. Moschovakis, MSRI publications, Springer 1991 pages 481–498.
*Vagueness and Utility: the Semantics of Common Nouns in Linguistics and Philosophy 17 1994, pages 521–35.
*Topological Reasoning and The Logic of Knowledge (with Dabrowski and Moss) Annals of Pure and Applied Logic 78 (1996) pages 73–110.
*Belief revision and language splitting, in Proc. Logic, Language and Computation, Ed. Moss, Ginzburg and de Rijke, CSLI 1999, pages 266–278 (earlier version appeared in 1996 in the preliminary proceedings).
*(with Samir Chopra), Relevance Sensitive Belief Structures, Annals of Mathematics and Artificial Intelligence, 28(1–4): pages 259–285 (2000).
*Social Software, Synthese, 132, Sep 2002, pages 187–211.
*(with Jouko Vaananen), Finite information logic, Annals of Pure and Applied Logic, 134 (2005) pages 83–93.
*(With R. Ramanujam), A Knowledge based Semantics of Messages, Journal of Logic, Language and Information, 12 2003, pages 453–467.
*Levels of Knowledge, Games, and Group Action, Research in Economics, 57 2003, pages 267–281.
*Costa, Horacio Arlo, and Rohit Parikh. "Conditional probability and defeasible inference." Journal of Philosophical Logic 34.1 (2005): pages 97–119.
*Arlo-Costa, Horacio, and Rohit Parikh. "Two place probabilities, beliefs and belief revision: on the foundations of iterative belief kinematics." Proceedings of The Twelfth Amsterdam Colloquium. 1999.
*Weiss, M. Angela, and Rohit Parikh. "Completeness of certain bimodal logics for subset spaces." Studia Logica (2002): pages 1–30.
*Parikh, Rohit, and Adriana Renero. "Justified True Belief: Plato, Gettier, and Turing." Philosophical explorations of the legacy of Alan Turing. Springer, Cham, 2017. pages 93–102.
References
External links
Parikh's archive on the CUNY Philosophy CommonsRohit Parikh's Curriculum VitaeBrooklyn College home page
{{DEFAULTSORT:Parikh, Rohit J
1936 births
Living people
Putnam Fellows
American logicians
Belief revision
Harvard University alumni
Game theorists
Brooklyn College faculty
CUNY Graduate Center faculty
People from Banaskantha district