1 Oct 12:55 2005

### Re: Evolution of Language

On Friday 30 September 2005 02:57, Jean-Luc Delatre wrote: > On Thu, 29 Sep 2005 22:57:20 +0100 > > Hamish Harvey <hamish@...> wrote: > > What about > > > > {"the sum of X and Y", "the product of X and Y"} > > {"add X and Y", "multiply X by Y"} > > No two such classes. Their contents seem to me to just as similar/dissimilar as the original two: {"the sum of X and Y", "add X and Y"} {"the product of X and Y", "multiply X by Y"} "the sum of" is a result. "add" is an action. The connection in each case that one member of the class refers to the result of the other. The statements are not semantically equivalent, just related. The members of two classes I suggest are clearly similar in syntactic structure. They also have semantic similarity: the result of applying an operator to two values, and the action of doing so. So these seem to me to be equally valid "equivalence classes". > But all 4 items may be part of a "more general" "class" of binary > arithmetic operations. The overall structure of "all classes" being akin to The "more general" "class" seems to have do with the notion of binary arithmetic operations, abstracting away not only from the specific operator,(Continue reading)