159 found
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Antimo Negri [77]Antonio Negri [76]A. Negri [39]Sara Negri [35]
Toni Negri [20]Maurizio Negri [9]Silvia Negri [3]S. Negri [3]

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See also:
Profile: Sara Negri (University of Helsinki)
Profile: Antimo Negri (Adelphi University)
Profile: Gianpiero Negri
Profile: Marco Negri
Profile: Vincent Negri (Centre national de la recherche scientifique)
  1.  11
    Sara Negri & Jan von Plato (2001). Structural Proof Theory. Cambridge University Press.
    A concise introduction to structural proof theory, a branch of logic studying the general structure of logical and mathematical proofs.
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  2. Antonio Negri (2009). Insurgencies: Constituent Power and the Modern State. University of Minnesota Press.
    Constituent power : the concept of a crisis -- Virtue and fortune : the machiavellian paradigm -- The Atlantic model and the theory of counterpower -- Political emancipation in the American constitution -- The revolution and the constitution of labor -- Communist desire and the dialectic restored -- The constitution of strength.
     
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  3.  13
    Sara Negri (2011). Proof Analysis: A Contribution to Hilbert's Last Problem. Cambridge University Press.
    Machine generated contents note: Prologue: Hilbert's Last Problem; 1. Introduction; Part I. Proof Systems Based on Natural Deduction: 2. Rules of proof: natural deduction; 3. Axiomatic systems; 4. Order and lattice theory; 5. Theories with existence axioms; Part II. Proof Systems Based on Sequent Calculus: 6. Rules of proof: sequent calculus; 7. Linear order; Part III. Proof Systems for Geometric Theories: 8. Geometric theories; 9. Classical and intuitionistic axiomatics; 10. Proof analysis in elementary geometry; Part IV. Proof Systems for Nonclassical (...)
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  4. Cesare Casarino & Antonio Negri (2008). In Praise of the Common: A Conversation on Philosophy and Politics. Univ of Minnesota Press.
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  5. Antonio Negri (2014). Factory of Strategy: Thirty-Three Lessons on Lenin. Columbia University Press.
    Translation of the authoro's Fabbrica della strategia.
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  6.  33
    Sara Negri (2005). Proof Analysis in Modal Logic. Journal of Philosophical Logic 34 (5/6):507 - 544.
    A general method for generating contraction- and cut-free sequent calculi for a large family of normal modal logics is presented. The method covers all modal logics characterized by Kripke frames determined by universal or geometric properties and it can be extended to treat also Gödel-Löb provability logic. The calculi provide direct decision methods through terminating proof search. Syntactic proofs of modal undefinability results are obtained in the form of conservativity theorems.
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  7.  12
    Sara Negri (2014). Proofs and Countermodels in Non-Classical Logics. Logica Universalis 8 (1):25-60.
    Proofs and countermodels are the two sides of completeness proofs, but, in general, failure to find one does not automatically give the other. The limitation is encountered also for decidable non-classical logics in traditional completeness proofs based on Henkin’s method of maximal consistent sets of formulas. A method is presented that makes it possible to establish completeness in a direct way: For any given sequent either a proof in the given logical system or a countermodel in the corresponding frame class (...)
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  8.  23
    Roy Dyckhoff & Sara Negri (2012). Proof Analysis in Intermediate Logics. Archive for Mathematical Logic 51 (1-2):71-92.
    Using labelled formulae, a cut-free sequent calculus for intuitionistic propositional logic is presented, together with an easy cut-admissibility proof; both extend to cover, in a uniform fashion, all intermediate logics characterised by frames satisfying conditions expressible by one or more geometric implications. Each of these logics is embedded by the Gödel–McKinsey–Tarski translation into an extension of S4. Faithfulness of the embedding is proved in a simple and general way by constructive proof-theoretic methods, without appeal to semantics other than in the (...)
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  9.  34
    Sara Negri (2011). Proof Theory for Modal Logic. Philosophy Compass 6 (8):523-538.
    The axiomatic presentation of modal systems and the standard formulations of natural deduction and sequent calculus for modal logic are reviewed, together with the difficulties that emerge with these approaches. Generalizations of standard proof systems are then presented. These include, among others, display calculi, hypersequents, and labelled systems, with the latter surveyed from a closer perspective.
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  10.  65
    Paolo Maffezioli, Alberto Naibo & Sara Negri (2013). The Church–Fitch Knowability Paradox in the Light of Structural Proof Theory. Synthese 190 (14):2677-2716.
    Anti-realist epistemic conceptions of truth imply what is called the knowability principle: All truths are possibly known. The principle can be formalized in a bimodal propositional logic, with an alethic modality ${\diamondsuit}$ and an epistemic modality ${\mathcal{K}}$ , by the axiom scheme ${A \supset \diamondsuit \mathcal{K} A}$ (KP). The use of classical logic and minimal assumptions about the two modalities lead to the paradoxical conclusion that all truths are known, ${A \supset \mathcal{K} A}$ (OP). A Gentzen-style reconstruction of the Church–Fitch (...)
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  11. Sara Negri, Jan von Plato & Aarne Ranta (2010). Structural Proof Theory. Cambridge University Press.
    Structural proof theory is a branch of logic that studies the general structure and properties of logical and mathematical proofs. This book is both a concise introduction to the central results and methods of structural proof theory, and a work of research that will be of interest to specialists. The book is designed to be used by students of philosophy, mathematics and computer science. The book contains a wealth of results on proof-theoretical systems, including extensions of such systems from logic (...)
     
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  12. Antonio Negri (2008). The Porcelain Workshop: For a New Grammar of Politics. Semiotext(E).
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  13.  18
    Raul Hakli & Sara Negri (2012). Does the Deduction Theorem Fail for Modal Logic? Synthese 187 (3):849-867.
    Various sources in the literature claim that the deduction theorem does not hold for normal modal or epistemic logic, whereas others present versions of the deduction theorem for several normal modal systems. It is shown here that the apparent problem arises from an objectionable notion of derivability from assumptions in an axiomatic system. When a traditional Hilbert-type system of axiomatic logic is generalized into a system for derivations from assumptions, the necessitation rule has to be modified in a way that (...)
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  14.  17
    Sara Negri & Jan Von Plato (1998). Cut Elimination in the Presence of Axioms. Bulletin of Symbolic Logic 4 (4):418-435.
    A way is found to add axioms to sequent calculi that maintains the eliminability of cut, through the representation of axioms as rules of inference of a (...)
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  15.  14
    Sara Negri & Giorgio Sbardolini (forthcoming). Proof Analysis for Lewis Counterfactuals. Review of Symbolic Logic:1-32.
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  16.  7
    Sara Negri (2003). Contraction-Free Sequent Calculi for Geometric Theories with an Application to Barr's Theorem. Archive for Mathematical Logic 42 (4):389-401.
    Geometric theories are presented as contraction- and cut-free systems of sequent calculi with mathematical rules following a prescribed rule-scheme that extends the scheme given in Negri and von Plato (1998). Examples include cut-free calculi for Robinson arithmetic and real closed fields. As an immediate consequence of cut elimination, it is shown that if a geometric implication is classically derivable from a geometric theory then it is intuitionistically derivable.
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  17. Sara Negri & Jan von Plato (2001). Sequent Calculus in Natural Deduction Style. Journal of Symbolic Logic 66 (4):1803-1816.
    A sequent calculus is given in which the management of weakening and contraction is organized as in natural deduction. The latter has no explicit weakening or contraction, but vacuous and multiple discharges in rules that discharge assumptions. A comparison to natural deduction is given through translation of derivations between the two systems. It is proved that if a cut formula is never principal in a derivation leading to the right premiss of cut, it is a subformula of the (...)
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  18.  5
    Sara Negri (forthcoming). Glivenko Sequent Classes in the Light of Structural Proof Theory. Archive for Mathematical Logic.
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  19.  7
    Sara Negri (2009). Kripke Completeness Revisited. In Giuseppe Primiero (ed.), Acts of Knowledge: History, Philosophy and Logic. College Publications 233--266.
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  20. Sara Negri & Jan von Plato (2011). Proof Analysis: A Contribution to Hilbert's Last Problem. Cambridge University Press.
    This book continues from where the authors' previous book, Structural Proof Theory, ended. It presents an extension of the methods of analysis of proofs in pure logic to elementary axiomatic systems and to what is known as philosophical logic. A self-contained brief introduction to the proof theory of pure logic is included that serves both the mathematically and philosophically oriented reader. The method is built up gradually, with examples drawn from theories of order, lattice theory and elementary geometry. The aim (...)
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  21. Sara Negri, Jan von Plato & Aarne Ranta (2011). Structural Proof Theory. Cambridge University Press.
    Structural proof theory is a branch of logic that studies the general structure and properties of logical and mathematical proofs. This book is both a concise introduction to the central results and methods of structural proof theory, and a work of research that will be of interest to specialists. The book is designed to be used by students of philosophy, mathematics and computer science. The book contains a wealth of results on proof-theoretical systems, including extensions of such systems from logic (...)
     
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  22. Antimo Negri & Timothy S. Murphy (2004). Subversive Spinoza Contemporary Variations. Monograph Collection (Matt - Pseudo).
     
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  23.  24
    Raul Hakli & Sara Negri (2011). Reasoning About Collectively Accepted Group Beliefs. Journal of Philosophical Logic 40 (4):531-555.
    A proof-theoretical treatment of collectively accepted group beliefs is presented through a multi-agent sequent system for an axiomatization of the logic of acceptance. The system is based on a labelled sequent calculus for propositional multi-agent epistemic logic with labels that correspond to possible worlds and a notation for internalized accessibility relations between worlds. The system is contraction- and cut-free. Extensions of the basic system are considered, in particular with rules that allow the possibility of operative members or legislators. Completeness with (...)
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  24.  6
    Sara Negri (2002). A Normalizing System of Natural Deduction for Intuitionistic Linear Logic. Archive for Mathematical Logic 41 (8):789-810.
    The main result of this paper is a normalizing system of natural deduction for the full language of intuitionistic linear logic. No explicit weakening or contraction rules for -formulas are needed. By the systematic use of general elimination rules a correspondence between normal derivations and cut-free derivations in sequent calculus is obtained. Normalization and the subformula property for normal derivations follow through translation to sequent calculus and cut-elimination.
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  25.  8
    Roy Dyckhoff And Sara Negri (2015). Geometrisation of First-Order Logic. Bulletin of Symbolic Logic 21 (2):123-163.
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  26.  5
    Maurizio Negri (1990). Fixed Points and Diagonal Method. Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 36 (4):319-329.
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  27.  6
    Sara Negri (1999). Sequent Calculus Proof Theory of Intuitionistic Apartness and Order Relations. Archive for Mathematical Logic 38 (8):521-547.
    Contraction-free sequent calculi for intuitionistic theories of apartness and order are given and cut-elimination for the calculi proved. Among the consequences of the result is the disjunction property for these theories. Through methods of proof analysis and permutation of rules, we establish conservativity of the theory of apartness over the theory of equality defined as the negation of apartness, for sequents in which all atomic formulas appear negated. The proof extends to conservativity results for the theories of constructive order over (...)
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  28.  7
    Sara Negri & Silvio Valentini (1997). Tychonoff's Theorem in the Framework of Formal Topologies. Journal of Symbolic Logic 62 (4):1315-1332.
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  29.  11
    Sara Negri & Daniele Soravia (1999). The Continuum as a Formal Space. Archive for Mathematical Logic 38 (7):423-447.
    A constructive definition of the continuum based on formal topology is given and its basic properties studied. A natural notion of Cauchy sequence is introduced and Cauchy completeness is proved. Other results include elementary proofs of the Baire and Cantor theorems. From a classical standpoint, formal reals are seen to be equivalent to the usual reals. Lastly, the relation of real numbers as a formal space to other approaches to constructive real numbers is determined.
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  30.  4
    Maurizio Negri (1992). Universal Functions in Partial Structures. Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 38 (1):253-268.
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  31.  2
    Alessandra Zenere, M. Elisabetta Zanolin, Roberta Negri, Francesca Moretti, Mario Grassi & Stefano Tardivo (forthcoming). Assessing Safety Culture in NICU: Psychometric Properties of the Italian Version of Safety Attitude Questionnaire and Result Implications. Journal of Evaluation in Clinical Practice:n/a-n/a.
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  32.  11
    Antonio Negri (1995). Spinoza's Anti-Modernity. Graduate Faculty Philosophy Journal 18 (2):1-15.
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  33.  56
    Antonio Negri (2011). Is It Possible to Be Communist Without Marx? Critical Horizons 12 (1):5-14.
    This paper explores the question of whether it is possible to be communist without Marx. This entails encountering the ontological dimension of communism, that is, the material tenor of this ontology, its residual effectiveness, the desire of human beings to go beyond capital, and the reality of the episode of statism.
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  34.  12
    Antonio Negri (1995). On Gilles Deleuze & Félix Guattari, A Thousand Plateaus. Graduate Faculty Philosophy Journal 18 (1):93-109.
  35.  2
    Judith Revel & Antonio Negri (2007). Inventer le commun des hommes. Multitudes 31 (4):5.
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  36.  15
    Antonio Negri (2004). Subversive Spinoza: (Un)Contemporary Variations. Distributed Exclusively in the Usa by Palgrave.
    In Subversive Spinoza , Antonio Negri spells out the philosophical credo that inspired his radical renewal of Marxism and his compelling analysis of the modern state and the global economy by means of an inspiring reading of the challenging metaphysics of the seventeenth-century Dutch-Jewish philosopher Spinoza. For Negri, Spinoza's philosophy has never been more relevant than it is today to debates over individuality and community, democracy and resistance, modernity and postmodernity.
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  37.  18
    Sara Negri (2002). Varieties of Linear Calculi. Journal of Philosophical Logic 31 (6):569-590.
    A uniform calculus for linear logic is presented. The calculus has the form of a natural deduction system in sequent calculus style with general introduction and elimination rules. General elimination rules are motivated through an inversion principle, the dual form of which gives the general introduction rules. By restricting all the rules to their single-succedent versions, a uniform calculus for intuitionistic linear logic is obtained. The calculus encompasses both natural deduction and sequent calculus that are obtained as special instances from (...)
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  38.  13
    Sara Negri & Roy Dyckhoff (2006). Decision Methods for Linearly Ordered Heyting Algebras. Archive for Mathematical Logic 45 (4):411-422.
    The decision problem for positively quantified formulae in the theory of linearly ordered Heyting algebras is known, as a special case of work of Kreisel, to be solvable; a simple solution is here presented, inspired by related ideas in Gödel-Dummett logic.
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  39.  5
    Antonio Negri (2004). La philosophie de l'Old Europe. Rue Descartes 3 (3):230-241.
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  40.  2
    Sara Negri, Jan von Plato & Thierry Coquand (2004). Proof-Theoretical Analysis of Order Relations. Archive for Mathematical Logic 43 (3):297-309.
    A proof-theoretical analysis of elementary theories of order relations is effected through the formulation of order axioms as mathematical rules added to contraction-free sequent calculus. Among the results obtained are proof-theoretical formulations of conservativity theorems corresponding to Szpilrajn’s theorem on the extension of a partial order into a linear one. Decidability of the theories of partial and linear order for quantifier-free sequents is shown by giving terminating methods of proof-search.
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  41.  6
    Antonio Negri (2001). Ainsi commença la chute de l'Empire. Multitudes 4 (4):17-26.
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  42. Antonio Negri (2007). Giorgio Agamben: The Discreet Taste of the Dialectic. In Matthew Calarco & Steven DeCaroli (eds.), Giorgio Agamben: Sovereignty and Life. Stanford University Press 109--125.
     
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  43.  12
    Antonio Negri (1989). Between Infinity and Community: Notes on Materialism in Spinoza and Leopardi. Studia Spinozana: An International and Interdisciplinary Series 5:151-176.
  44.  8
    Sara Negri & Jan von Plato (1998). For Oiva Ketonen's 85th Birthday. Bulletin of Symbolic Logic 4 (4).
  45.  1
    Antonio Negri (2004). Multitude : guerre et démocratie à l'époque de l'Empire. Multitudes 4 (4):107-117.
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  46.  2
    Maurizio Negri (2010). A Probability Measure for Partial Events. Studia Logica 94 (2):271-290.
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  47.  45
    Valeria Negri (2005). Agro-Biodiversity Conservation in Europe: Ethical Issues. [REVIEW] Journal of Agricultural and Environmental Ethics 18 (1):3-25.
    While it is commonly acknowledged that the ecosystemic, and the inter- and intra-specific diversity of natural life is under threat of being irremediably lost, there is much less awareness that the diversity in agro-ecosystems is also under threat. This paper is focused on the biodiverse agro-ecosystems generated by landraces (LRs), i.e., farmer-developed populations of cultivated species that show among- and within-population diversity and are linked to traditional cultures. The aim of this work is to arouse concern about their loss, to (...)
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  48.  31
    Michael Hardt & Antonio Negri (1996). Postmodern Law and the Withering of Civil Society. Angelaki 1 (3):57 – 72.
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  49. Antonio Negri (2009). On Rem Koolhaas. Radical Philosophy 154:48-50.
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  50.  3
    Sara Negri & Jan Von Plato (1998). Cut Elimination in the Presence of Axioms. Bulletin of Symbolic Logic 4 (4):418-435.
    A way is found to add axioms to sequent calculi that maintains the eliminability of cut, through the representation of axioms as rules of inference of a suitable form. By this method, the structural analysis of proofs is extended from pure logic to free-variable theories, covering all classical theories, and a wide class of constructive theories. All results are proved for systems in which also the rules of weakening and contraction can be eliminated. Applications include a system of predicate logic (...)
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