781 research outputs found
Some proof theoretical remarks on quantification in ordinary language
This paper surveys the common approach to quantification and generalised quantification in formal linguistics and philosophy of language. We point out how this general setting departs from empirical linguistic data, and give some hints for a different view based on proof theory, which on many aspects gets closer to the language itself. We stress the importance of Hilbert's oper- ator epsilon and tau for, respectively, existential and universal quantifications. Indeed, these operators help a lot to construct semantic representation close to natural language, in particular with quantified noun phrases as individual terms. We also define guidelines for the design of the proof rules corresponding to generalised quantifiers.Cet article dresse un rapide panorama de l'approche commune de la quantification généralisée ou non en linguistique formelle et en philosophie du langage. Nous montrons que ce cadre général va parfois 'a l'encontre des données linguistiques, et nous donnons quelques indications pour une approche différente basée sur la théorie de la démonstration, qui sur bien des points s'avère plus proche de la langue. Nous soulignons l'importance des opérateurs tau et epsilon de Hilbert, qui rendent respectivement compte de la quantification universelle et existentielle. En effet, ces opérateurs permettent de construire des représentations sémantiques qui suivent la langue avec, en particulier des groupes nominaux quantifiées qui soient des termes individuels. Nous donnons aussi des principes pour définir des règles de déduction qui correspondent aux quantificateurs généralisés
A Non-Commutative Extension of MELL
We extend multiplicative exponential linear logic (MELL) by a non-commutative, self-dual logical operator. The extended system, called NEL, is defined in the formalism of the calculus of structures, which is a generalisation of the sequent calculus and provides a more refined analysis of proofs. We should then be able to extend the range of applications of MELL, by modelling a broad notion of sequentiality and providing new properties of proofs. We show some proof theoretical results: decomposition and cut elimination. The new operator represents a significant challenge: to get our results we use here for the first time some novel techniques, which constitute a uniform and modular approach to cut elimination, contrary to what is possible in the sequent calculus
A Tale of Convergence? Discrimination based on Sexual Orientation in Regional Human Rights Bodies and the Human Rights Committee
This is an Accepted Manuscript version of the following article, accepted for publication in Nordic Journal of Human Rights . Elena Abrusci (2017) A Tale of Convergence? Discrimination based on Sexual Orientation in Regional Human Rights Bodies and the Human Rights Committee, Nordic Journal of Human Rights, 35:3, 240-257, DOI: 10.1080/18918131.2017.1355434
Characterization, biodegradation and cytotoxicity of thermoplastic starch and ethylene-vinyl alcohol copolymer blends
Ethylene-vinyl alcohol samples containing 27 and 38 % ethylene were used to prepare blends containing 30 and
50 % thermoplastic starch (TPS) plasticized with glycerol. Their biodegradability and cytotoxicity were studied
by different techniques (XRD, DSC, TGA, CA, ATR-FTIR, SEM). TPS presence significantly affected copolymer
behavior, as confirmed by the appearance of O–H IR 1000–1170 cm− 1 bands and overall reduction of EVOH
crystallinity, melting point, thermal stability and hydrophobicity. Biodegradation was more efficient in the
presence of TPS and resulted in the formation of a robust biofilm by a consortium of three bacteria. A lower
ethylene content facilitated biodegradation, making the material easier to metabolize. The mineralization percentages obtained after a 40-day bioassay at 45 ◦C were up to 66 % (EVOH-27/TPS 50:50). In vitro cytotoxicity
assay demonstrated no cytotoxicity before and after biodegradation. EVOH/TPS blends are presented as a potential environmentally friendly alternative to pure synthetic polymersThe authors want to thank the Spanish Ministry of Science and
Innovation for financial support (project PID2019-104812GB-I00) and
FUAM, Universidad Autonoma de Madrid, Spain (project n◦ 820053
Judicial fragmentation on indigenous property rights: causes, consequences and solutions
This is an Accepted Manuscript of an article published by Taylor & Francis in The International Journal of Human Rights on 11 Apr 2017, available online: https://www.tandfonline.com/doi/full/10.1080/13642987.2017.130783
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