|Metalanguage: metalanguage is the language in which linguistic forms, the meaning of expressions and sentences, the use of language, as well as the admissibility of formations, and the truth of statements are discussed. The language you refer to is called object language. A statement about the form, correctness, or truth of another statement thus includes both, i.e. object language and meta language. See also richness, truth-predicate, expressiveness, paradoxes, mention, use, quasi-reference, quotation, hierarchy, fixed points.|
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Meta language/Tugendhat: typical truth condition of a predicative assertion: is true iff the singular term is an element of the class, for which the predicate stands - then comes the desscription of the object in the meta language - TugendhatVsMeta language: 1. relapse in the object theory - 2. one must understand what a class is - 3. one must understand the expression in another language - 4. predicate and singular term are not explained as complementary expressions.
TugendhatVsMeta language: presupposes that we understand meta language signs - otherwise we would not have gotten beyond the syntax - then ever higher orders needed - regress - Solution: pragmatics (VsCanap).
Vorlesungen zur Einführung in die Sprachanalytische Philosophie Frankfurt 1976
Philosophische Aufsätze Frankfurt 1992