Title
Partiality, state and dependent types
Abstract
Partial type theories allow reasoning about recursively-defined computations using fixed-point induction. However, fixed-point induction is only sound for admissible types and not all types are admissible in sufficiently expressive dependent type theories. Previous solutions have either introduced explicit admissibility conditions on the use of fixed points, or limited the underlying type theory. In this paper we propose a third approach, which supports Hoare-style partial correctness reasoning, without admissibility conditions, but at a tradeoff that one cannot reason equationally about effectful computations. The resulting system is still quite expressive and useful in practice, which we confirm by an implementation as an extension of Coq.
Year
Venue
Keywords
2011
TLCA
fixed point,admissibility condition,underlying type theory,hoare-style partial correctness reasoning,expressive dependent type theory,explicit admissibility condition,partial type theory,fixed-point induction,effectful computation,admissible type
Field
DocType
Volume
Separation logic,Inductive type,Algebra,Computer science,Correctness,Algorithm,Type theory,Fixed point,Dependent type,Computation
Conference
6690
ISSN
Citations 
PageRank 
0302-9743
4
0.42
References 
Authors
16
3
Name
Order
Citations
PageRank
Kasper Svendsen11276.84
Lars Birkedal2148196.84
Aleksandar Nanevski358327.01