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FSTTCS
2010
Springer
13 years 3 months ago
Uniqueness of Normal Forms is Decidable for Shallow Term Rewrite Systems
Uniqueness of normal forms (UN= ) is an important property of term rewrite systems. UN= is decidable for ground (i.e., variable-free) systems and undecidable in general. Recently ...
Nicholas Radcliffe, Rakesh M. Verma
AAECC
2008
Springer
110views Algorithms» more  AAECC 2008»
13 years 5 months ago
Adding constants to string rewriting
We consider unary term rewriting, i.e., term rewriting with unary signatures where all function symbols are either unary or constants. Terms over such signatures can be transformed...
René Thiemann, Hans Zantema, Jürgen Gi...
LFP
1990
171views more  LFP 1990»
13 years 6 months ago
Operational and Axiomatic Semantics of PCF
PCF, as considered in this paper, is a lazy typed lambda calculus with functions, pairing, fixed-point operators and arbitrary algebraic data types. The natural equational axioms ...
Brian T. Howard, John C. Mitchell