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22

of definite individuals called its members,
what is the meaning of this compounded
existence. It is plain that the idea of a compound
is a triadic idea. It implies that there is some
sign, or something like a sign, which picks out
and unites those members. Now the fact that
they are all united in that compound is a
quality belonging to them all and to nothing else.
There is thus here a reference to a possible sam
which does this. Thus, we might as well at once
defined a gath as a subject which
has but one mode of being which is the
existence of a sam. From this fact, that a
gath cannot be defined except in terms
of a sam, it follows that if by a collection

22

of definite individuals called its members,
what is the meaning of this compounded
existence. It is plain that the idea of a compound
is a triadic idea. It implies that there is some
sign, or something like a sign, which picks out
and unites those members. Now the fact that
they are all united in that compound is a
quality belonging to them all and to nothing else.
There is thus here a reference to a possible sam
which does this. Thus, we might as well at once
defined a gath as a subject which
has but one mode of being which is the
existence of a sam. From this fact, that a
gath cannot be defined except in terms
of a sam, it follows that if by a collection