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(2003) Synthese 136 (3).

Virtual modality

William Boos

pp. 435-492

Model-theoretic 1-types overa given first-order theory T may be construed as natural metalogical miniatures of G. W. Leibniz' ``complete individual notions'', ``substances'' or ``substantial forms''. This analogy prompts this essay's modal semantics for an essentiallyundecidable first-order theory T, in which one quantifies over such ``substances'' in a boolean universe V(C), where C is the completion of the Lindenbaum-algebra of T.

Publication details

DOI: 10.1023/A:1025101329309

Full citation:

Boos, W. (2003). Virtual modality. Synthese 136 (3), pp. 435-492.

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