One conclusion of this is that to participate in an ostensive definition presupposes an understanding of the process and context involved, of the " form of life ".
12.
One source of autological words are archetypal words ( ostensive definition ) words chosen to describe a phenomenon by using an example of the phenomenon, which are thus necessarily autological.
13.
It might be supposed that one might use " a kind of ostensive definition " for "'S "', by focusing on the sensation and on the symbol.
14.
Hence, to appeal to a private ostensive definition as the standard of correct use of a term would be " as if someone were to buy several copies of the morning paper to assure himself that what it said was true ."
15.
So, for instance, there is no difference between pointing to a piece of paper, to its colour, or to its shape; but understanding the difference is crucial to using the paper in an ostensive definition of a shape or of a colour.
16.
The limitations of ostensive definition are exploited in a famous argument from the " Philosophical Investigations " ( which deal primarily with the philosophy of language ), the private language argument, in which Wittgenstein asks if it is possible to have a private language that no one else can understand.
17.
Wittgenstein argues that there is no criterion for the correctness of such an ostensive definition, since whatever " seems " right will " be " right,'And that only means that here we can't talk about " right " .'The exact reason for the rejection of private language has been contentious.
18.
He writes : " If we are taught the meaning of the word'yellow'by being given some sort of ostensive definition [ in this case, " ostensive " means something like " denoting a way of defining by direct demonstration, e . g ., by pointing " ] ( a rule of the usage of the word ) this teaching can be looked at in two different ways : ( A ).
