xxxii INTRODUCTION
element seem however to be in agreement with our theory. For instance there seems
to be an important ideological difference between our operator
ov
: L
L,
ova
= ,
P
and the absolute derivation introduced in [86],
Z ^ Z , (p'rrO^ep'-V
op op
where m £ Z is prime to p. Indeed the constants of Sp are 0 and ±1 while the
constants of d/dp are 0 and all the integers coprime to p. This suggests that,
according to the philosophy of Fi, there is no theory of Fi that involves one prime
only; the only theory about Fi would involve all the primes at the same time. On
the contrary, in our book, there is a theory for each individual prime.
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