Deprecated: $wgMWOAuthSharedUserIDs=false is deprecated, set $wgMWOAuthSharedUserIDs=true, $wgMWOAuthSharedUserSource='local' instead [Called from MediaWiki\HookContainer\HookContainer::run in /var/www/html/w/includes/HookContainer/HookContainer.php at line 135] in /var/www/html/w/includes/Debug/MWDebug.php on line 372
On some proof theoretical properties of the modal logic GL - MaRDI portal

On some proof theoretical properties of the modal logic GL (Q798649)

From MaRDI portal





scientific article; zbMATH DE number 3871326
Language Label Description Also known as
English
On some proof theoretical properties of the modal logic GL
scientific article; zbMATH DE number 3871326

    Statements

    On some proof theoretical properties of the modal logic GL (English)
    0 references
    0 references
    1983
    0 references
    GL is the propositional modal logic complete under the interpretation of necessity as provability in first-order arithmetic. The cut elimination proof for GL given by \textit{D. Leivant} [J. Symb. Logic 46, 531--538 (1981; Zbl 0464.03019)] contained a gap repaired by \textit{S. Valentini} [J. Philos. Logic 12, 471--476 (1983; Zbl 0535.03031)]. The author presents another cut elimination proof.
    0 references
    GL
    0 references
    propositional modal logic
    0 references
    cut elimination
    0 references
    0 references

    Identifiers