@misc{Lexicon of Arguments, title = {Quotation from: Lexicon of Arguments – Concepts - Ed. Martin Schulz, 28 Mar 2024}, author = {Frege,Gottlob}, subject = {Copula}, note = {I 90 Copula/Frege: a coplua can be found in the sentence e.g. "The sky is blue". Contrast: a contrast is offered by the equation: "The number of Jupiter’s moons equals four". The four contains nothing related to Jupiter and moon. >Equal sign, >Equation, >Identity. I 109 Equal Sign/"="/Frege/(s): the equal sign links objects, not concepts or predicates with properties. By contrast, the copula/(s): links an object with a concept. >Concept, >Object. - - - IV 100 The copula does not express identity: "sky = blue", but a simple "is". (The predicate is enclosed). Correct: "The sky is a blue thing": "A is a B". (> indefinite article).}, note = { F I G. Frege Die Grundlagen der Arithmetik Stuttgart 1987 F II G. Frege Funktion, Begriff, Bedeutung Göttingen 1994 F IV G. Frege Logische Untersuchungen Göttingen 1993 }, file = {http://philosophy-science-humanities-controversies.com/listview-details.php?id=241787} url = {http://philosophy-science-humanities-controversies.com/listview-details.php?id=241787} }