|Property: what can be ascribed to an object in order to distinguish it from other objects. In philosophy, there is debate about whether properties exist or whether "bare particulars" exist. Expressions for properties are predicates. Not every predicate will refer to a property. See also quantification over properties, 2nd order logic, HOL, completeness.|
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Properties/Observation/Feyerabend: Properties of the telescope are not the properties of the objects; properties of the objects seen in the telescope, however, cannot be distinguished from those properties which are possibly a contribution of the telescope.
Wider den Methodenzwang Frankfurt 1997
Erkenntnis für freie Menschen Frankfurt 1979