What Are Hybrid Languages?

@article{Blackburn1995WhatAH,
  title={What Are Hybrid Languages?},
  author={Patrick Blackburn and Jerry Seligman},
  journal={Journal of Logic, Language and Information},
  year={1995},
  volume={4},
  pages={251-272}
}
Hybrid languages have both modal and first-order characteristics: a Kripke semantics, and explicit variable binding apparatus. This paper motivates the development of hybrid languages, sketches their history, and examines the expressive power of three hybrid binders. We show that all three binders give rise to languages strictly weaker than the corresponding first-order language, that full first-order expressivity can be gained by adding the universal modality, and that all three binders can… CONTINUE READING
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