An assessment of the Unicode standard
gagsl-py2 at yahoo.com.ar
Tue Sep 22 01:38:46 CEST 2009
En Sun, 20 Sep 2009 03:33:47 -0300, Greg Ewing
<greg.ewing at canterbury.ac.nz> escribió:
> Hendrik van Rooyen wrote:
> In any case, it doesn't affect my point, which was that
> I was thinking about something that I didn't have a word,
> or even a convenient phrase for.
>> That is probably true, but on the other hand, it is not totally rubbish
>> either, as it is hard to think of stuff you have never heard of,
>> whether you have an undefined word for it or not.
> I quite agree that there is *some* interaction between
> the language we use and the way we think, but it's a
> two-way process. As a species, we're quite capable of
> thinking about new things and inventing words to express
> them when the need arises.
> It's possible that some individuals do this more
> frequently than others, e.g. mathematicians and other
> people who are in the habit of exploring new ideas may
> be less influenced by the constraints of language
> than the general population.
Anyway, they're still constrained by the language.
In ancient Greece many wise men made remarkable progress in geometry,
arithmetic, and other areas - but could not develop algebra. Why not?
Algebra requires abstract names for unknowns - x,y,z that we use today.
The greek number system used letters to represent numbers themselves -
α=1, β=2, etc. - so no one would think on using letters for designating
unknown quantities; it was just out of their mental frame.
Diophantus created some kind of algebra notation, so he was able to write
x**n (for 2<=n<=6, basically combining the expressions for x² and x³) and
could express some equations in short (or abridged) form, instead of the
full prose that were used normally. But he was simply not able to develop
symbolic algebra. And nothing happened for 15 centuries in this regard in
The Arabians brought the Indian number system (and the idea of zero as a
number) to Europe. And it's not a coincidence that Arabians also developed
symbolic Algebra at the same time ; they *could* develop Algebra
because they had a language into which symbolic names could be expressed.
 Colerus, Egmont. Historia de la Matemática. De Pitágoras a Hilbert.
Bs. As, Ediciones Progreso y Cultura, 1943
 BTW, the very name 'algebra' comes from a book of Abu Ja'far Muhammad
ibn Musa Al-Khwarizmi, "al-jabr w'al-muqabala". And guess where
'algorithm' comes from?
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