検索結果- 英語 - 英語
検索内容:
Banach-Tarski paradox
name
(mathematics)
A
theorem
in
set-theoretic
geometry,
which
states
that
given
a
solid
ball
in
three‑dimensional
space,
there
exists
a
decomposition
of
the
ball
into
a
finite
number
of
disjoint
subsets,
which
can
then
be
put
back
together
in
a
different
way
to
yield
two
identical
copies
of
the
original
ball.
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