How did Rudolf Carnap use logical analysis of language to address philosophical problems?

Rudolf Carnap believed that many philosophical perplexities arise from the misunderstanding or misuse of language. To resolve these issues, he advocated for the logical analysis of language, a method that sought to replace the often inadequate devices of traditional logic with the precision of symbolic logic and artificially constructed languages.12

Carnap’s approach involved several key strategies:

• Logical Reconstruction: Rather than relying on ordinary linguistic usage, Carnap argued that technical issues in science and mathematics require clarification through artificial languages. These languages are formulated using logical symbolism and governed by precisely specified syntactic and semantic rules.13
• Distinction of Languages: He utilized a clear distinction between the object language (the language being analyzed) and the metalanguage (the language in which the analysis is formulated), which allowed for rigorous investigation without falling into infinite regress.3
• Empirical Significance: Carnap used logical analysis to define a testability criterion. He argued that statements are empirically meaningful only if they can be tested or confirmed by observational findings. Consequently, he rejected doctrines of speculative metaphysics and theology as making no significant assertions.24
• Analyticity: He maintained that logic and mathematics are analytic—true solely by virtue of the meanings of their constituent terms—and thus established a priori, distinct from empirical science.13