Logical structures and genus of proofs

被引:3
|
作者
Carbone, Alessandra [1 ]
机构
[1] Univ Paris 06, Dept Comp Sci, Paris, France
关键词
Logical flow graph; Genus of a proof; Cut-free proof; Cut; Sequent calculus; GRAPHS;
D O I
10.1016/j.apal.2009.05.007
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Any arbitrarily complicated non-oriented graph, that is a graph of arbitrarily large genus, can be encoded in a cut-free proof. This unpublished result of Statman was shown in the early seventies. We provide a proof of it, and of a number of other related facts. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:139 / 149
页数:11
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