The Permutative λ-Calculus
The Permutative λ-Calculus
复制标题
置换 λ 演算
DOI:
10.1007/978-3-642-28717-6_5
复制
发表时间:
2012
期刊:
影响因子:
--
通讯作者:
K. Nagahama
中科院分区:
文献类型:
--
作者:
Mai Oshio;Takuma Fujii;T. Kusaura;K. Nagahama
We introduce the permutativeλ-calculus, an extension ofλ-calculus with three equations and one reduction rule for permuting constructors, generalising many calculi in the literature, in particular Regnier’s sigma-equivalence and Moggi’s assoc-equivalence. We prove confluence modulo the equations and preservation of beta-strong normalisation (PSN) by means of an auxiliary substitution calculus. The proof of confluence relies on M-developments, a new notion of development forλ-terms.