Philosophy Lexicon of Arguments

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I 106
Complex terms/Relative Clause/Geach: the relation of pronoun-antecedent analog to the variable-operator is ambiguous - solution: resolution by an additional pronoun: "if", "and" etc. - ((s) It is not about unity but about dissolving the unity.) - Symbolic language/Geach: (e.g. quantum theory): can dissolve unity by definition: E.g. y belongs to the class of Ps: different depending on whether with equality sign or epsilon: for a class x, y belongs to x and if something belongs to x, it is P. - E.g. wrong: "Only a woman who has lost any sense of shame is drunk". - right: "A woman will only become... if she .." otherwise it follows: Men never get drunk.
I 120
Relative Clause/Geach: Difference: E.g.: "man who killed his brother"/"man, so that..." -
"So that"/Principia Mathematica/Russell/PM: "so that" is an undefined basic concept in Principia Mathematica, GeachVsQuine: equally unclear - Geach: "so that" cannot be distinguished from "and" in quantifier notation. - E.g.: "The woman whom every Englishman appreciates is, above all, his mother": The relative clause here is not a general term: otherwise all appreciate the same mother! But in "... his queen ..." solution/Geach: this has nothing to do with the relative-clause, but with the range of application expressions. > Latin sentence theory/terminology.

Gea I
P.T. Geach
Logic Matters Oxford 1972

> Counter arguments against Geach

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