Thomas Lord scripsit:

>   2a) sequence predicates should not be primitive in Scheme

Such was the case until R4RS.  In RRRS and R3RS, the two-argument version
was standardized, and it was documented that some implementations allowed
more than two arguments.  The language about monotonic sequences goes
back to RRRS.  (I can't find a usable copy of RRS on line; RS is
silent on the subject.)

-- 
John Cowan  <[EMAIL PROTECTED]>  http://ccil.org/~cowan
Micropayment advocates mistakenly believe that efficient allocation of
resources is the purpose of markets.  Efficiency is a byproduct of market
systems, not their goal.  The reasons markets work are not because users
have embraced efficiency but because markets are the best place to allow
users to maximize their preferences, and very often their preferences are
not for conservation of cheap resources.  --Clay Shirkey

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