Philosophy Lexicon of Arguments

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General validity: within a calculus a formula that is satisfied by any interpretation (variable assignment with expressions for objects) is valid. See also satisfaction, satisfiability, interpretation.
 
Author Item Excerpt Meta data

 
Books on Amazon
I 22
Definition valid/Boer; Some authors: a conclusion is valid if no inference "of the same form" has true premises and has a false conclusion.
Problem: We cannot use this here because we also allow names for non-existing things.
Validity/everyday language/Boer: can only be asserted relatively to a particular reading.

Boer I
Steven E. Boer
Thought-Contents: On the Ontology of Belief and the Semantics of Belief Attribution (Philosophical Studies Series) New York 2010

Boer II
Steven E. Boer
Knowing Who Cambridge 1986


> Counter arguments against Boer



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Ed. Martin Schulz, access date 2017-05-28