Semantic Theories (Fach) / Frege's Semantic Theory (Lektion)
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short overview
Diese Lektion wurde von anipanni erstellt.
- Frege.... paper Über Sinn und Bedeutung (1892) -> most important basis of modern semanics ground of the description of semantics introduced the terms: Zeichen, Sinn, Bedeutung
- Frege's and Morris' terminology in comparison Frege Zeichen (sign) Morris sign vehicle Frege Sinn (sense) Morris designatum Frege Bedeutung (reference) Morris denotatum
- What does sense, reference and sign mean? sense: kind of givenness reference: what is given sign: proper name, common noun A sign may have a sense, but no reference! Examples: Santa Claus, the present king of France Sense of a sentence is its thought, the reference of a sentence is its truth value. Many sentences don't have a truth value, because they contain words which have no reference "Ulysses listened to the Sirens" - > thought (sense) remains the same whether Ulysses has a reference or not, but the sentence is neither true nor false.
- If the reference of a sentence is its truth value, what is then? All true sentences and all false sentences have the same reference
- Is the truth value really the reference of a sentence? The evening star shines bright. The morning star shines bright. His father was a writer. The husband of his mother was a writer. truth value doesn't change when replacing the expressions.
- Classification of clauses - clauses which express a thought as their reference, not a truth value, its sense not being a thought but only part of a thought - Dependent clauses which have a complete thought as their sense and truth value as their reference - Complex clauses, e.g. when two clauses express three thoughts
- Direct discourse (ungerade Rede) Frege that-clauses following verbs like say, believe, conclude... that-clauses following verbs like hope, fear, doubt.. adverbial clause expressing a purpose (He closed the window so that it would not get too cold) dependent interrogative clauses (I asked him who had left)
- Direct discourse (gerade Rede) Frege free relatives (Who wrote this letter must be insane; What you did was nasty)