Fixed-point constraints for nominal equational unification

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorAyala-Rincón, Mauricio-
Autor(es): dc.creatorFernández, Maribel-
Autor(es): dc.creatorNantes Sobrinho, Daniele-
Data de aceite: dc.date.accessioned2021-10-14T18:17:05Z-
Data de disponibilização: dc.date.available2021-10-14T18:17:05Z-
Data de envio: dc.date.issued2019-06-11-
Data de envio: dc.date.issued2019-06-11-
Data de envio: dc.date.issued2018-
Fonte completa do material: dc.identifierhttp://repositorio.unb.br/handle/10482/34780-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/627899-
Descrição: dc.descriptionWe propose a new axiomatisation of the alpha-equivalence relation for nominal terms, based on a primitive notion of fixed-point constraint. We show that the standard freshness relation between atoms and terms can be derived from the more primitive notion of permutation fixed-point, and use this result to prove the correctness of the new alpha-equivalence axiomatisation. This gives rise to a new notion of nominal unification, where solutions for unification problems are pairs of a fixed-point context and a substitution. Although it may seem less natural than the standard notion of nominal unifier based on freshness constraints, the notion of unifier based on fixedpoint constraints behaves better when equational theories are considered: for example, nominal unification remains finitary in the presence of commutativity, whereas it becomes infinitary when unifiers are expressed using freshness contexts.-
Formato: dc.formatapplication/pdf-
Publicador: dc.publisherDaugstuhl research Online Publishing Server-
Direitos: dc.rightsAcesso Aberto-
Direitos: dc.rights© Mauricio Ayala-Rincón, Maribel Fernández, and Daniele Nantes-Sobrinho; licensed under Creative Commons License CC-BY.-
Palavras-chave: dc.subjectTermos nominais-
Palavras-chave: dc.subjectEquações de ponto fixo-
Palavras-chave: dc.subjectUnificação nominal-
Palavras-chave: dc.subjectTeoria de equações-
Título: dc.titleFixed-point constraints for nominal equational unification-
Aparece nas coleções:Repositório Institucional – UNB

Não existem arquivos associados a este item.