Philosophy Lexicon of Arguments

Equivalence: Relation between sentences. It exists if both sides have the same truth value, so that they are both true or both false.
Author Item Excerpt Meta data
Stalnaker, Robert
Books on Amazon
Equivalence I 84
Def equivalence / localization / logical space / Stalnaker: to say that i is equivalent to j, is to say that the localization functions represent i and j in the same world. - Def intrinsic property: Region in logical space that is invariant with respect to this equivalence relation - contrast: conventional property - (see diagram I 83).

Sta I
R. Stalnaker
Ways a World may be Oxford New York 2003

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Ed. Martin Schulz, access date 2017-04-30