Logikebene
LogikEbene is a term used in German-speaking discussions of logic and formal reasoning to denote a level of abstraction within a hierarchical structure of reasoning. It refers to a layer where certain statements, rules, and concepts are formulated and manipulated, distinct from the subject matter of study (the object level) and from rules about the logic itself (the meta level).
In formal logic the object language contains the expressions being studied, while the meta-language is used
The term is not part of a single standardized framework; its precise meaning can vary by author