Tractability and learnability arising from algebras with few subpowers

  • Authors:
  • Pawel Idziak;Petar Markovic;Ralph McKenzie;Matthew Valeriote;Ross Willard

  • Affiliations:
  • Jagiellonian University, Poland;University of Novi Sad, Serbia;Vanderbilt University, USA;McMaster University, Canada;University of Waterloo, Canada

  • Venue:
  • LICS '07 Proceedings of the 22nd Annual IEEE Symposium on Logic in Computer Science
  • Year:
  • 2007

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Abstract

The decidability of equality is proved for Martin-Lof type theory with a universe á la Russell and typed beta-eta- equality judgements. A corollary of this result is that the constructor for dependent function types is injective, a property which ...