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CHAPTER
- ORDERED SURVEYS OF ARGUMENTS ON AN ISSUE
(Pro-aut-contra surveys) |
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| The purpose of making argument
surveys on an issue is both semantical and logical. A survey is a set
of arguments for and against an issue all of which are explicitly expressed
as separate statements. (Surveys are almost always written). This
has the semantical advantage of clarity. Issues and arguments that are
insufficiently precise, too inconcise or inappropriately-expressed will
exhibit these weaknesses more readily when separately stated. The logical
advantage of surveys is chiefly that the relations of implication, relevance
or irrelevance between the issue and the arguments and between the various
arguments themselves can be more easily examined and readily grasped as
a whole.
The function of an ordered
survey is not always to prove or disprove the issue, since genuine issues
can normally be resolved only in practice and depend upon the achievement
of the consensus of the parties involved. There can be both highly-relevant
and tenable arguments for, as well as against, an issue so that no rational
conclusion as to the whole can be derived. If a conclusion is reached
it is not a logically-valid one in the strict sense because it is an
evaluation as to which side presents the strongest arguments
when all are taken together and compared. "In our opinion world security is threatened by nuclear power plants. Consider the cases of India, Israel, Pakistan and South Africa. Nuclear power plants have provided the technology they require to make them capable of developing nuclear weapons. Further, fissionable products can more easily be stolen for illegal uses when nuclear power plants exist, even though official authorities claim their security systems to be almost infallible. Obviously, no system where the human factor is involved is ever infallible. It's no use arguing that nuclear technology is under the control of expert scientists because this is not so and because scientists do not own the technology or its products." The underlined is clearly what constitutes the issue-statement (hereafter I0) and it is a descriptive statement. The arguments for and against will therefore be ordered as statements that support or weaken the tenability of 10, making those that are directly relevant to the issue main arguments (hereafter 'first-order arguments'), and those that are directly related to a main argument sub-arguments. Arguments that are first-order
are indicated by capital P for pro and C for contra and are numbered
for the sake of identification (i.e. the numbering does not indicate
importance or precedence). Further, arguments that do not relate directly
to the issue but instead refer to a first-order argument (whether pro
or contra the issue) are sub- arguments. Sub-arguments are thus indirectly
related to the issue, through the first-order argument to which they
refer. C1 No, because nuclear
technology is under the control of expert scientists. The above obviously does
not exhaust the issue, but it serves to show how three main lines of
argument (headed by P1, P2 and C1) are related to the issue and their
sub-arguments. There is no way to decide when an issue is exhausted
as this depends upon experience, imagination and knowledge of the facts
pertinent to the issue. Despite this, however, certain arguments can
be so tenable and relevant and of such a degree of irrefutability that
they serve to make only one conclusion likely, even though the survey
is not exhaustive of all main arguments possible. They are not thereby
logically irrefutable, but practically so in that their denial leads
to absurd standpoints. Rule 1) The arguments
must be formulated explicitly enough to enable one to decide whether
they are Pro or contra. If a statement could equally well figure as
pro or contra, it is not a sufficiently clear descriptive argument.
(The main arguments must be ordered correctly as for (P1, P2, P3 etc.)
or against (C1, C2, C3 etc) the issue-statement, see example above).
The exact wording of an argument is important, so the semantical standards
of clarity, conciseness and precision should be observed. Unclear arguments
can frequently be improved by reformulation of their expressions according
to the principles earlier stated. Rule 3) No argument
that is directly or indirectly in support of the issue-statement may
contradict any other supporting arguments, whatever order they may be.
I0 'In Scandinavian nations party politicians are bound to vote according to officially-adopted party conference policies.' PRO CONTRA C2 but parliamentary representatives of a party may only abstain from voting unless they receive directions from official party conference policies. Impracticable and untrue
as C2 is as an argument, it is not consistent with the assumption upon
which C1 was supposedly based. One cannot both abstain from voting and
vote on grounds of Individual moral conscience etc. (C2 is also not
clearly a contra-argument, as it stands without further explanation). Applying these standards
to the example about nuclear power plants it can be seen from the original
text that the writer-is arguing for the issue-statement, so P1 is correctly
labeled. However, considering whether P1 could just as well have been
labeled C1, we find that those who see it as a benefit that countries
with nuclear power plants should be capable of developing nuclear weapons
would indeed label the argument as contra the issue-statement. According
to rule 1 therefore the argument is not sufficiently clear. That is
not clear about it when taken outside the textual context is that it
assumes implicitly that it is an undesirable state of affairs that certain
countries are capable of developing nuclear weapons. The argument could
therefore be further qualified as follows:- The debate about desirability or undesirability would then become relegated to the second-order argumentation, if such a point is regarded as debatable. Secondly, the sub-argument p1P1 is correctly labeled as a statement supporting P1. The third rule requires that we ensure no contradictions between P1, p1P1, P2, c1c1P2 and c1c1 occur, because all of these are statements in support of the issue-statement, either directly or indirectly. In this case there is compatibility in that all of these statements could be tenable at once. Rule 4 does not appear to
be infringed in the example, though this does not guarantee that it
is fully observed. Further analysis may bring to light assumptions that
are not justifiable. Evaluation requires three assessments. Firstly the tenability and secondly the relevance of each main argument is assessed, where necessary by also assessing the tenability and relevance of the supporting and weakening sub-arguments. Lastly, the main arguments, as assessed for tenability and relevance, are reviewed together and compared as to their relative strength pro and contra. This may lead one to a conclusion, based on all the arguments and only those arguments (i.e. excluding 'after-thought' arguments not included in the survey). The conclusion may be for the issue-statement, against it or a 'stalemate', where neither side has an overweight and one therefore reserves judgement. In some cases of course, no conclusion will be arrived at due either to incompleteness of a survey, either as to arguments that ought to have been included or as to lacking information regarding the tenability of main arguments. However, all arguments end somewhere. Applying the above to the
argument example about nuclear power plants, I make an evaluation for
purposes of demonstration, it being based upon my own information and
judgement at present, (i.e. the correctness of my information and judgement
is not thereby entirely guarantee:- All in all, I regard C1 as
untenable, therefore also irrelevant to the issue. A prescriptive statement
does not constitute a logical argument because its function or purpose
is to be emotive (i.e. to persuade) and is not cognitive. P1 is clearly a prescriptive
statement and one which many would accept as a good argument for I0.
Here, however it is not formulated as a logical or empirical ground
for I0, so it must be regarded as irrelevant to I0. The sub-argument
p1P1, however, makes explicit what is thought to be one consequence
of morally wrongful non-belief in God. So p1P1 could be tested as to
its tenability and therefore could stand as a rational ground for I0.
It could be re-labeled P1 instead of as P1 above, which latter is rejected
from any ordered survey. Whether p1P1 (now P1) is a strong or tenable
argument is another question. At least it puts forward a view that is
testable in principle, though doubtless very difficult to test in practice.
It assumes also that the term 'inhuman' is not normative, which is open
to question. Further definition of the term 'inhuman' would be required
before any test would be practically feasible. For example, 'inhuman
acts' could be defined as 'acts contrary to the Geneva Contention of
1948's Declaration of Human Rights. Even then, conclusive testing of
the tenability of p1P1 would be highly difficult and probably most controversial. When sub-arguments are forwarded
they will tend to support or weaken the main argument. This can be achieved
in two distinct ways, either by strengthening/weakening the main argument's
tenability, or by strengthening/weakening its relevance to the issue-statement.
For example:- c1P1 is an argument against
the tenability of the next argument of higher order. If c1P1 is judged
tenable, it will weaken the tenability of P1. This makes it a relevant
argument against P1 (see definition of relevance for descriptive issue-statements.
P1 has now become, for all intents, a descriptive issue-statement in
relation to c1P1 (which is like a first-order argument against it now).
Both of the above arguments refer to the relevance of P1 as an argument for I0. Of course, c1P1 is against P1, an argument attempting to show that P1 has limited relevance to I0, while p1P1 attempts to show that P1 does have relevance to I0. Which is strongest depends upon the tenability of c1P1 and p1P1 (as well as any other arguments that might be included which concern the relevance of P1 to I0). The process of evaluation
of any main argument requires, therefore, that all of the sub-arguments
be evaluated - starting with those of the lowest order and working gradually
'upwards' towards the main argument at the top. Each sub-argument is
evaluated for its tenability and its relevance to the next argument
(in ascending order). It is important to distinguish whether a sub-argument
relates to the tenability or the relevance of the argument above it.
When such judgements have been made, an overall judgement of the tenability
and relevance of the main argument can be made. This is a rule-of-thumb
judgement in most cases of arguments for issues of a broad or general
nature and it decides the strength of the argument. This argument
will then be subsequently compared with other arguments, both pro- and
contra- arguments of the 1'st order so that a conclusion as to whether
the issue is supported or weakened by the arguments available can be
made. In some cases the arguments for and against may balance one another
so that a conclusion cannot be reached, even on the strength of available
evidence. Again, where broad issues are involved, it will seldom be
possible to marshall all the arguments of importance, especially not
all possible relevant and tenable sub-arguments. As said, all arguments
end somewhere. Prescriptive issue-statements,
which express a norm and advocate action, require somewhat different
treatment. When the issue-statement expresses a norm (is prescriptive)
the arguments relevant to it may often also be prescriptive, including
value-statements and tenets of belief. These can invariably be expressed
as descriptive statements instead, which helps to clarify then and make
the evaluation of their tenability possible (for prescriptive statements
cannot be true or false, by definition). Relevance is also judged in
a different way for prescriptive issues. The 'then' expresses that
the argument is a consequence of the realisation of I0. Had the argument
been expressed as a norm, it might have been: In this case, the argument amounts to a rejection of the issue itself, as if to say 'the issue-statement is so absurd as to be worthless for discussion'. This is frequently a problem with prescriptive issues. Those who do not consider the subject of the issue to be important, who do not assert the value concerned, nor its antithesis, may forward a rational ground why the issue itself is inconsequential. This amounts to rejecting an issue as irrelevant to fruitful discussion or research. In some respects an issue is much like an hypothesis, the grounds for or against which one wishes to summarise and evaluate. A fruitful hypothesis is like a fruitful issue. Both can be tested by some means and both will lead to improvement in our knowledge if the ensuing debate or investigation helps to weaken or strengthen the statement in question. Since prescriptive issue-statements
express norms (i.e. are often called 'normative statements') they usually
forward a value (or counter-value). The qualifier 'usually' is employed
here since, as has' been shown, a statement with a prescriptive form
can nonetheless have a descriptive function in reality (as contrariwise
for descriptive statements). Those prescriptive issue-statements which
also have a normative function (despite the actual wording) - such as
"One ought not kill other human beings" may have been derived
from arguments in the first place. Or else - as is most likely in the
case of the present example (if taken to be an appropriate interpretation
of one of the 10 commandments from the Book of Moses) - it has been
put forward as a norm according to which arguments can be ordered after
interpreting and applying the norm. In other words, there is an intimate
or internal relationship between any issue-statement and the arguments
that it will organise, or - in the opposite direction - between the
data and viewpoints which, when considered together, give rise to a
normative statement. This two-way relationship is comparable to that
between regarding a system of statements as a deductive or as an inductive
system, as will be considered in the next part of this book. Some practical advice
on making ordered surveys 2) Arguments must
be clear and concise. The most common faults in forming arguments
tend to be vagueness, inexplicitness and compounding different arguments
together into one. This argument is vague, relatively
imprecise. What aspect of health? How is it related to smoking? One
may try to make it more explicit and clear as:-
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EXERCISES
(ORDERED SURVEYS) 1) A: Poor countries
ought to give modern technological expertise a leading role in their
development, because they will be more capable of surviving world economic
competition. a) Order the above discussion
in the form of a logically-consistent argument survey, clearly indicating
which are pro- and which contra-arguments, and of what order you consider
them to be. Give reasons.
a) Set the above discussion
in an ordered argument survey, clearly indicating which of the above
statements is the issue-statement and which are arguments for or against
it. |