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A Calculus of Terms for Coalgebras of Polynomial Functors (2001)  (Make Corrections)  (4 citations)
Robert Goldblatt



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Abstract: A syntax and semantics of types, terms and formulas for coalgebras of polynomial functors is developed, extending earlier work [4] on monomial coalgebras to include functors constructed using coproducts. A modified ultrapower construction for polynomial coalgebras is introduced, adapting the conventional ultrapower to retain only those states that evaluate observable terms in a standard way. A special role is played by terms that take observable values and are "rigid": their free variables do... (Update)

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.... in the 1940 s (information supplied by Paul Cohn and Bernhard Neumann) 15 functors, and extended to polynomial functors in [14, 13]. It involves a new notion of ultra lter enlargement of a coalgebra, an analogue of the Stone space of a Boolean algebra. These ideas can...

.... of work centred around the mentioned duality, especially to establish coalgebraic versions of Birkho s variety theorem, see e.g. 6] 2] [1]. It is commonly seen as one of the biggest advantages of coalgebras that they deliver standard notions like bisimulation, observational...

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Translating Logics for Coalgebras - Pattinson (2002)   (Correct)
Logics Admitting Final Semantics - Kurz   (Correct)
A Syntactical Approach to Weak (Bi-)Simulation for Coalgebras - Rothe (2002)   (Correct)

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BibTeX entry:   (Update)

Robert Goldblatt. A calculus of terms for coalgebras of polynomial functors. Electronic Notes in Theoretical Computer Science, 44, Issue 1, 2001. http://www.elsevier.nl/ locate/entcs. http://citeseer.ist.psu.edu/goldblatt01calculus.html   More

@misc{ goldblatt01calculus,
  author = "R. Goldblatt",
  title = "A calculus of terms for coalgebras of polynomial functors",
  text = "Robert Goldblatt. A calculus of terms for coalgebras of polynomial functors.
    Electronic Notes in Theoretical Computer Science, 44, Issue 1, 2001. http://www.elsevier.nl/
    locate/entcs.",
  year = "2001",
  url = "citeseer.ist.psu.edu/goldblatt01calculus.html" }
Citations (may not include all citations):
227   North-Holland (context) - Chang, Keisler - 1973
186   Universal Coalgebra: a Theory of Systems - Rutten - 2000
121   An Approach to Object Semantics Based on Terminal Co-Algebra.. (context) - Reichel - 1995
91   A Final Coalgebra Theorem (context) - Aczel, Mendler
72   Objects and Classes (context) - Jacobs - 1996
38   Categorical Logic and Type Theory (context) - Jacobs - 1999
36   Categorical Logic - Pitts - 2000
33   Annals of Pure and Applied Logic (context) - Moss - 1999
30   Specifying Coalgebras with Modal Logic (context) - Kurz - 1998
20   towards Universal Coalgebra (context) - Rutten, of - 1995
18   Models and Ultraproducts (context) - Bell, Slomson - 1969
17   Structural induction and coinduction in a brational setting (context) - Hermida, Jacobs - 1998
12   Also available as Aarhus Univ (context) - Hermida, Fibrations et al. - 1993
10   Towards a Duality Result in Coalgebraic Modal Logic (context) - Jacobs - 2000
8   From Modal Logic to Terminal Coalgebras (context) - iger
3   manuscript for the proceedings of the Mathematics for Inform.. (context) - Jacobs - 2000
http://www.mcs.vuw.ac.nz/~rob/papers/what.ps

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Mathematical Modal Logic: a View of its Evolution - Goldblatt (2001)   (Correct)
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Duality for Some Categories of Coalgebras - Goldblatt (2001)   (Correct)

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