Objects {abstract object} can be not observable, have no space or time locations, have no matter, have no cause, have no effects, and exist only necessarily. Abstract objects are opposites of concrete actual physical things.
Ideals {ideal} are perfect, unchanging, and universal objects, or abstract ideas of particular objects. Extrapolation from the particular can create perfect-object representations. Mathematical knowledge is about ideals.
6-Philosophy-Metaphysics-Object
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Date Modified: 2022.0225