Philosophy Lexicon of Arguments

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Extensionality, philosophy: (also extensionality principle, extensionality thesis) an attempt to make the language distinct by taking complete sets of denoted objects as the meaning of the referring words. See also extensions, intensions, extensional language, ambiguity, propositional attitudes.
 
Author Item Excerpt Meta data
Russell, Bertrand
 
Books on Amazon:
Bertrand Russell
Extensionality I XXXII (Note)
Def Extensionality principle: no two different properties can belong to exactly the same thing ((s) but only intensional - "great man"/"fat man" may be the same, just different intensions (therefore just no properties)) - I XVI Def intentionality principle: to different definitions belong different terms - Def vicious circle principle / Russell: no totality can contain members that can be defined only in terms of this totality, or members which comprise this totality or presuppose it.

R I
B. Russell/A.N. Whitehead
Principia Mathematica Frankfurt 1986

R II
B. Russell
Das ABC der Relativitätstheorie Frankfurt 1989

R IV
B. Russell
Probleme der Philosophie Frankfurt 1967

R VI
B. Russell
Die Philosophie des logischen Atomismus
In
Eigennamen, U. Wolf (Hg), Frankfurt 1993

R VII
B. Russell
Wahrheit und Falschheit
In
Wahrheitstheorien, G. Skirbekk (Hg), Frankfurt 1996


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Ed. Martin Schulz, access date 2017-03-24