Combining Texts

Ideas for 'Being and Nothingness', 'The Tarskian Turn' and 'Philosophy of Language'

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2 ideas

4. Formal Logic / D. Modal Logic ML / 1. Modal Logic

15163	The interest of quantified modal logic is its metaphysical necessity and essentialism [Soames]
	Full Idea: The chief philosophical interest in quantified modal logic lies with metaphysical necessity, essentialism, and the nontrivial modal de re.
	From: Scott Soames (Philosophy of Language [2010], 3.1)

4. Formal Logic / E. Nonclassical Logics / 1. Nonclassical Logics

15329	Nonclassical may accept T/F but deny applicability, or it may deny just T or F as well [Horsten]
	Full Idea: Some nonclassical logic stays close to classical, assuming two mutually exclusive truth values T and F, but some sentences fail to have one. Others have further truth values such as 'half truth', or dialethists allow some T and F at the same time.
	From: Leon Horsten (The Tarskian Turn [2011], 01.2)
	A reaction: I take that to say that the first lot accept bivalence but reject excluded middle (allowing 'truth value gaps'), while the second lot reject both. Bivalence gives the values available, and excluded middle says what has them.