A further and effective liberalization of the delta-rule in free variable semantic tableaux

Citation
D. Cantone et Mn. Asmundo, A further and effective liberalization of the delta-rule in free variable semantic tableaux, LECT N A I, 1761, 2000, pp. 109-125
Citations number
7
Categorie Soggetti
Current Book Contents
ISSN journal
03029743
Volume
1761
Year of publication
2000
Pages
109 - 125
Database
ISI
SICI code
0302-9743(2000)1761:<109:AFAELO>2.0.ZU;2-T
Abstract
In this paper, we present a further liberalization of the delta -rule in fr ee variable semantic tableaux. It is effective in that (1) it is both a nat ural and intuitive liberalization, and (2) can reduce the proof size non el ementarily as compared to previous versions of the delta -rule.