First-Order Formative Rules
Carsten Fuhs, Cynthia Kop · BIROn (Birkbeck, University of London) · 2014
This paper discusses the method of formative rules for first-order term rewriting, which was previously defined for a higher-order setting. Dual to the well-known usable rules, formative rules allow dropping some of the term constraints that need to be solved during a termination proof. Compared to the higher-order definition, the first-order setting allows for significant improvements of the technique.