[MD] The Intellectual Level of Quality,

[X Acto]

RMP asked for some proof of Egyptian cultures use of
long chain of deductions before the Greeks.

Here are some example I have found

http://en.wikipedia.org/wiki/Rhind_Mathematical_Papyrus

http://en.wikipedia.org/wiki/Moscow_Mathematical_Papyrus

and even earlier examples from other cultures

http://en.wikipedia.org/wiki/Babylonian_mathematics

http://en.wikipedia.org/wiki/Nine_Chapters_on_the_Mathematical_Art

I think the dawning of civilisation isa more accurate marking point for the intellectual level
in the context of the evolution of the human being..
Civilisation:
"is often characterized by advanced agriculture, 
long-distance trade, occupational specialization, 
and urbanism. Aside from these core elements, 
civilization is often marked by any combination 
of a number of secondary elements, including a 
developed transportation system, writing, 
standards of measurement (currency, etc.), 
contract and tort-based legal systems, great 
art style, monumental architecture, mathematics, 
sophisticated metallurgy, and astronomy."