Last Updated：2025/12/19
Sentence
An
old
tradition
has
it
that
there
are
two
branches
of
logic:
deductive
logic
and
inductive
logic.
More
recently,
the
differences
between
these
disciplines
have
become
so
marked
that
most
people
nowadays
use
"logic"
to
mean
deductive
logic,
reserving
terms
like
"confirmation
theory"
for
at
least
some
of
what
used
to
be
called
inductive
logic.
I
shall
follow
the
more
recent
practice,
and
shall
construe
"philosophy
of
logic"
as
"philosophy
of
deductive
logic".
Quizzes for review
An old tradition has it that there are two branches of logic: deductive logic and inductive logic. More recently, the differences between these disciplines have become so marked that most people nowadays use logic
to mean deductive logic, reserving terms like confirmation theory
for at least some of what used to be called inductive logic. I shall follow the more recent practice, and shall construe philosophy of logic
as philosophy of deductive logic
.
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