DECISION PROBLEMS FOR MULTIPLE SUCCESSOR ARITHMETICS.
Abstract
Let N sub k denote the set of words over the alphabet S sub k = (1, ..., k). N sub k contains the null word which is denoted. Decision problems are considered for various first-order interpreted predicate languages in which the variables range over N sub k (k > 2). The main result is that there is no decision procedure for truth in the interpreted language which has the subword relation as its only non-logical primitive. This, together with known results summarized in the report, settles the decision problem for any language constructed on the basis of a large number of relations and functions. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1965
- Accession Number
- AD0615085
Entities
People
- J. W. Thatcher
Organizations
- University of Michigan