Philosophy Now Forum

Things are defined by what they are, not what they are not.

True or False?
Any counter examples?

what they are or what they appear to be?

and what of non-empirical entities?

square and overhand are defined by what they are knot...

and holes are defined by what they are not...

-Imp

Defining what something is implicitly defines what it is not. So, why would it be wrong to make make the implicit explicit?

Maybe what the OP is trying to imply is that it would be impossible to completely define something by what it is not, as that would involve an infinite list ... and thereby a list of many irrelevant things that would only cloud the issue. However, I would offer up the challenge that it is likewise impossible to give a complete definition even by saying what something is.

I would further note that reduction ad absurdum is a powerful technique in mathematics.

Things are defined by what they are, not what they are not

Were this to be true then all things would be the same thing; all things would be everything - with out the benefit of making a distinction.
A thing can only be understood by what is not and what it is like. - by making distinctions and similes.

Things are not defined.

Not in an absolute sense, and not by themselves.

Things may however be defined in relation to other things.

You are contradicting yourself.

Things are defined.

Here is an example: And apples is a fruit, it is not like a banana but more like a pear.

QED your first statement is false.

No one made any claims about "an absolute sense".

Your third statement contradicts your first.

Only for emphasis, my friend; in order to contrast my statement against Wootah's original statement.

Let me put it this way:

Things are defined by what they are in relation to other things. Without other things, they are not defined.

If I give you credit for not misspelling knot can you explain the joke?

Holes and space might be a good counter example. A hole isn't a thing is it?




Not sure of your point. I would reply that all we need is to know enough about each object to identify them.



That doesn't seem to make sense to me. A shoe and a nail seem easy to define such that no one would confuse them. Can you explain further?


Chaz disagreed and I thought you and he said the same thing. More information is needed for me.

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I would add that if you are searching for something then it is necessary to know what it is not.
If you don't know what you are looking for then knowing what not to look for helps a great deal. (If the set of things to choose from is small.)

If I give you credit for not misspelling knot can you explain the joke?

http://meritbadge.org/wiki/index.php/Knot (these knots are defined by what they are, knots)



Holes and space might be a good counter example. A hole isn't a thing is it?

a hole is a defined absence ... I suppose it would depend on your definition of thing...

-Imp

False, here is a clear example.

By things, I assume we mean people as well, since they are things in this universe.

Lebron James in NOT a winner(in the ultimate since of the word as it refers, a champion). Plain and simple, definition by what he is NOT, rather that what he is. Which could be classified as a fantastic basketball player.

Atheist.
Bachelor.
Counter-example.
Doppelganger.
Ex-Catholic.
Foreigner.

In other words: Things are defined by what they are like and what they are not like. --- and by what they are the same as, actually.