Call by need computations to root-stable form
Call by need computations to root-stable form
复制标题
按需要计算调用根稳定形式
DOI:
10.1145/263699.263711
复制
发表时间:
1997
期刊:
影响因子:
--
通讯作者:
A. Middeldorp
中科院分区:
文献类型:
--
作者:
A. Middeldorp
The following theorem of Huet and Lévy forms the basis of all results on optimal reduction strategies for orthogonal term rewriting systems: every term not in normal form contains a needed redex, and repeated contraction of needed redexes results in the normal form, if the term under consideration has one. We generalize this theorem to computations to root-stable form and we argue that the resulting notion of root-neededness is more fundamental than (other variants of) neededness when it comes to infinitary normalization.