Hostname: page-component-7b7567c8c-2n9c9 Total loading time: 0 Render date: 2026-11-15T17:52:24.512Z Has data issue: false hasContentIssue false

HARMONIOUS RULES FOR IDENTITY

Published online by Cambridge University Press:  03 June 2014

Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the 'Save PDF' action button.

Logical inferentialists claim that the meanings of the logical constants are given by their inference rules. To rule out tonk-like expressions, it is often demanded that pairs of inference rules must be harmonious. The usual inference rules for the identity predicate are not harmonious, but most inferentialists want identity to be logical. Stephen Read has tried to formulate alternative, harmonious inference rules for identity. It will be proved, however, that his rules are precisely as strong as the old rules and that, because the old rules are not harmonious (as Read argues), nor are his. Further, it will be shown that no sound rules will be any improvement. Identity remains in need of satisfactory inferentialist treatment.

Information

Type
Research Article
Copyright
Copyright © Association for Symbolic Logic 2014