Philosophy Lexicon of Arguments

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
Boer, Steven E.
Books on Amazon
Validity 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

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Ed. Martin Schulz, access date 2017-04-23