復習用の問題
Free Boolean algebra is a mathematical structure that consists of a set of elements and operations.
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Free Boolean algebra is a mathematical structure that consists of a set of elements and operations.
関連する単語
free Boolean algebra
noun
(algebra)
A
field
of
sets
whose
elements
are
equivalent
to
Boolean
formulas
(or,
perhaps
more
precisely,
equivalence
classes
of
Boolean
formulas).
Starting
with
a
set
of
n
variables
which
are
independent
of
each
other
and
are
called
generators,
the
power
set
of
this
set
has
2ⁿmembers
which
may
be
called
atoms
and
are
valuations
of
the
n
variables:
a
valuation
can
be
considered
to
be
a
set
of
variables
which
are
"true"
under
that
valuation,
or
a
conjunction
of
generators
(such
that
variables
not
included
in
that
set
are
included
in
negated
form
in
the
equivalent
conjunction).
Then
the
power
set
of
the
set
of
atoms
yields
a
set
of
2^(2ⁿ)
members
which
are
the
elements
of
the
said
field
of
sets.
These
elements
correspond
to
Boolean
formulas:
a
formula
can
be
considered
to
be
a
set
of
valuations
which
make
the
formula
true,
or
a
linear
combination
(i.e.,
a
disjunction)
of
atoms.
英語 - 英語
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