Chaining
51
Syllogisms
A special case of conjoining clauses was
touched
on
when
we
spoke
of conditional tenses joined
by
if.
When
two or more conditional
clauses are
linked
to each other
and
to a conclusion clause, a syllo-
gism is created.
"If
high
spending
contributes to inflation,
and
if
advertising
and
credit stimulate high spending,
then
advertising
and
credit contribute to inflation."
At
the
material level,
such
a conjunction of conditions
may
be
stated
in
a sentence like this:
"If
heavy
rain
falls a long
time
on
loose
dirt,
and
if
the
terrain is steeply tilted, a
mudslide
will
occur." Note
that
this
logical relationship
may
be
expressed
by
other conjunctions
and
by
adverbs: "A
mudslide
occurs because heavy
rain
falls a long
time
on
loose
dirt
and
because
the
terrain is steeply tilted." Or:
"The
rain
falls a long time
on
loose dirt,
and
the
terrain is steeply tilted;
so
[therefore] a
mudslide
occurs."
The
point
is
that
underneath
these
various conjunctions
and
adverbs there lies a single logical relation-
ship. This relationship is called
entailment-certain
things being so
entail other things being so. (See
on
page
43
Susanne Langer's men-
tion
of entailment.)
It
is
important
to realize
that
what
is
the
same
at
the
conceptual
level-entailment-may
be
expressed at
the
verbal
level as causality, conditionality, or something else.
Syllogizing
may
be, first of all,
implicit
or explicit and, second,
may
take several forms.
It
is
an
important
sort of logical growth to
look for,
but
the
teacher
can
expect
it
to be revealed
in
more
than
one
verbal way,
if
made
explicit at all. A syllogism
may
perfectly well
exist
in
a discourse
without
being verbalized
in
a single sentence. It
may
be
embodied
in
another
kind
of linguistic linking
than
conjoined
clauses-in
one of
the
other kinds
of
chaining discussed next.
Transitional words
Besides conjunctions
and
relative pronouns, certain adverbs connect
clauses
and
do so explicitly as conjunctions (moreover, however,
nevertheless, so, therefore, accordingly,
and
others referring to ideas
in
previous clauses),
but
these differ
in
being situated within a clause,
not
between
clauses, so
that
they tie clauses together only
by
throw-
ing
an
idea
bridge,
not
by
connecting grammatically. These are
what
we
might call transition words, because
they
are
added
to a clause to
relate statements explicitly
in
the
same
way
that
whole sentences
may
be
stuck into a discourse to effect transitions from one
main
idea
or
part
of
the
organization to another ("Leaving aside for
the
moment
the objections to
this
idea, let's
now
turn
to
....
").