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contain M_y. So this sole sam of Ms that is in
the relation r to M_y is not my test sam. If
M_y however belongs to the second class, it is one
of those Ms which I expressly exclude from
my test sam. It is however contained
in the only sam of Ms that stands in the
relation r to it. Plainly, then, this sam that
alone is in the relation r to M_y if M_y belongs
to the second class is not my test sam. The
only remaining possibility is that M_y belongs to
the third class. But in that case it is one of
these Ms to which no sam of M stands in the
relation r; so that my test sam cannot stand
in that relation to it. Thus you perceive that
to whatever class M_y belongs my test sam