WARNING: This part is more complex than all previous parts and drafts together. If you are new to these posts, I strongly suggest you read Part 1, 2, 3 and 3 bis first, because otherwise you will most likely not be able to follow Part 4.
For now, I am glad I finally got it written down.
For the definition of includes, see part 1.
For the discussion of simple and compound objects, see part 2.
For more information about properties, see part 3.
For more information about color, see part 3 bis.
This is a preliminary version of a work in progress.
Properties in perception philosophy.
First I spoke about natural and non-natural properties. But the picture is more complicated. Certain properties of objects are not real properties. Certain objects we refer to are not real objects either.
So there is a difference between the properties of real physical objects, and those of linguistic objects, as color is a property of a non-real linguistic object. It does pose the question how we are to refer to it. We refer to real objects in layers. We use linguistic objects in any language written or spoken. Those linguistic objects either refer to a real physical object or to a non-real physical object. As such I introduce two new terms: real linguistic objects, and non-real linguistic objects. A real linguistic object is an linguistic object that has as a property that the object it refers to is a real physical object. A non-real linguistic object is a linguistic object that has as a property that the object it refers to is a non-real physical object.
Now, one might pose the question, and correctly, what about emotions, thoughts and so on? And also, can the properties of a linguistic object change, so that at one moment it post to a non-real physical object and the next moment to a real physical object? First let's answer the first question.
Are emotions and thoughts physical objects? They are the result of physical objects interacting with each other. We may look at them as being not physical, but when a brain scan is done, we can see certain areas lighting up. This is a difficult question to answer, and the answer for the moment may shock certain people. For the moment (but more research is needed), I would say that they are an effect of physical objects interacting with each other. A proof for that idea is that, when people have brain damage, this also can damage the way they react, it damages their capabilities. Our emotions and thoughts are directly related to the human brain. Without the brain, there would not be emotions and language, and thoughts the way we know them. So emotions and thoughts and the thinking process, are linguistic objects that refer/point to the effect of physical objects interacting. This is not quite it, but it will do for now.