Solution of a Problem of Barendregt on Sensible Λ-theories

نویسندگان

  • BENEDETTO INTRIGILA
  • RICHARD STATMAN
  • R. STATMAN
چکیده

H is the theory extending β-conversion by identifying all closed unsolvables. Hω is the closure of this theory under the ω-rule (and β-conversion). A long-standing conjecture of H. Barendregt states that the provable equations of Hω form a Π11-complete set. Here we prove that conjecture.

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تاریخ انتشار 2006