@misc{Lexicon of Arguments, title = {Quotation from: Lexicon of Arguments – Concepts - Ed. Martin Schulz, 28 Mar 2024}, author = {Geach,Peter}, subject = {Concepts}, note = {I 26ff Concept/Frege/Geach: the meaning of "people" is not "many people", but the concept. I 220 Concept/GeachVsFrege: Frege: "The concept horse is not a concept" - i.e. it must be an object: this is a fallacy! - Not objects are realized, but concepts. - (The former is not falsehood, but nonsense). >Description level, >Level/Order, >Senseless, >Object. >Correct: E.g. "The concept human being is realized" is divided into "human being" and "the concept ... is realized" - the latter = "something is a...". What cannot be divided like this, is meaningless: E.g. "the concept human being is timeless". I 226 Concept/Frege/Geach: Frege has a purely extensional view - therefore he deals not with the "sense of the name", but the reference of the predicate. ((s) reference/(s): set of designated objects = extension.) >Extension. But: Extension/Frege/Geach: = object Concept/Frege: not an object! Reason: the concept is unsaturated, the object is saturated. >Saturated/unsaturated/Frege. "Red" does not stand for a concept, otherwise the concept would be a name. >Name/Frege. I 228f Concept/Geach: "The concept horse" is not a concept, because otherwise concepts would have names - (...+...) - Nor is a concept a logical unit. - No more than e.g. "Napoleon was a great general and the conqueror of Napoleon was a great general". - E.g. "A man is wise" is not an instance of "___ is wise" ("a man" is not a name), but of a derived predicate "a ... is wise". Sentence/Geach: sentences from which "the concept of human being" cannot be eliminated are pointless! - E.g. "The concept human being is an abstract entity". - Sentences about concepts need a quantifier. >Quantifier, >Quantification, >Sentence/Geach. I 230 Concept/Geach: a concept cannot have a proper name. - Instead, we refer the concept with the predicate. >Predicate/Geach, >Predicate/Frege. VsFrege: he uses pseudo-proper names for concepts: "The extension of the concept x cut the throat of x'." Pseudo-name: "the concept x cut x". >Names/Geach. Geach: correct: the name of the extension is "the range of x for x cut the throat of x'." I 234 Concept/Object/Quine: the distinction between concept and object is unnecessary! >Concept/Quine, >Object/Quine. GeachVsQuine: it is necessary! - Quine's disguised distinction between class and element corresponds to it. >Element relation/Quine, >Class/Quine.}, note = { Gea I P.T. Geach Logic Matters Oxford 1972 }, file = {http://philosophy-science-humanities-controversies.com/listview-details.php?id=205158} url = {http://philosophy-science-humanities-controversies.com/listview-details.php?id=205158} }