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The Logician © Avi Sion All rights reserved

 
The Logician © Avi Sion All rights reserved


©
Avi Sion, 1990 (Rev. ed. 1996) All rights reserved.
CHAPTER 53.
FACTORIAL ANALYSIS.
We are now in a position to analyze the precise content of gross
formulas, restating them as factorial formulas. These consist in complex
propositions identifying the alternative integers with which the given gross
formula is consistent. In this context, integers will be referred to as factors,
whether one or more of them are involved. The process may then be viewed as
factorization or factorial analysis of information.
By restructuring information in factorial terms, we are able to recognize
more clearly how close to, or far from, full knowledge we are with regard to the
subject and predicate in question. We know that reality must fall under one or
the other of the various integers in any case. Full knowledge implies that we
can pinpoint one integer as the right one. Total ignorance implies that all the
integers are equally likely outcomes for us. In between lies a mass of
possibilities, where we know that certain of the integers are excluded, but we
are still left with more than one integer to choose from.
Even in situations where we do have full knowledge, restating a gross
formula as an integer composed of fractions, permits us to trace or express more
precisely the way the extension is fragmented into different particular
relations. But let us proceed, and the importance of this approach will become
clear.
Note in passing that since singular statements are reducible to
disjunctions of plurals, they can also be factorized, though this is not done
below.
Let us concentrate again on natural modality as a closed system. Whatever
is found true for natural modality can as usual be duplicated for temporal
modality. Mixed modality will be dealt with further on.
The following table interprets the 49 gross formulas in factorial terms.
A factorial formula is expressed as a disjunction of one or more of the
15 integers (those marked 'yes': the number of factors = 'NF'); such disjunctives exclude all
other integers (those left blank).
For example, as the table reveals, F1,
F3, and F6 are the
factors of 'A'. 'A'
is thus to be read as 'F1 or F3 or F6', i.e. as '(An)
or (AEp) or (In)(IOp)':
these are the only 3 eventualities conceivable given that 'A'
is true, the rest being impossible outcomes. The disjunctive proposition is the
factorial equivalent of 'A', then.
Table 53.1 Factorial Analysis of Natural Gross Formulas.
NF 
F1 
F2 
F3 
F4 
F5 
F6 
F7 
F8 
F9 
F10 
F11 
F12 
F13 
F14 
F15 

Elements 

1 
An 
yes 

1 
En 
yes 

3 
A 
yes 
yes 
yes 

3 
E 
yes 
yes 
yes 

7 
Ap 
yes 
yes 
yes 
yes 
yes 
yes 
yes 

7 
Ep 
yes 
yes 
yes 
yes 
yes 
yes 
yes 

8 
In 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 

8 
On 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 

12 
I 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 

12 
O 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 

14 
Ip 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 

14 
Op 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 

NF 
F1 
F2 
F3 
F4 
F5 
F6 
F7 
F8 
F9 
F10 
F11 
F12 
F13 
F14 
F15 

Compounds 

1 
AEp 
yes 

1 
ApE 
yes 

1 
AInOp 
yes 

1 
EOnIp 
yes 

1 
ApEpIO 
yes 

2 
AIn 
yes 
yes 

2 
EOn 
yes 
yes 

2 
AOp 
yes 
yes 

2 
EIp 
yes 
yes 

2 
ApIEp 
yes 
yes 

2 
EpOAp 
yes 
yes 

2 
ApInO 
yes 
yes 

2 
EpOnI 
yes 
yes 

3 
ApEp 
yes 
yes 
yes 

3 
ApInOp 
yes 
yes 
yes 

3 
EpOnIp 
yes 
yes 
yes 

3 
ApIO 
yes 
yes 
yes 

3 
EpOI 
yes 
yes 
yes 

4 
ApIn 
yes 
yes 
yes 
yes 

4 
EpOn 
yes 
yes 
yes 
yes 

4 
IEp 
yes 
yes 
yes 
yes 

4 
OAp 
yes 
yes 
yes 
yes 

4 
InOn 
yes 
yes 
yes 
yes 

5 
ApIOp 
yes 
yes 
yes 
yes 
yes 

5 
EpOIp 
yes 
yes 
yes 
yes 
yes 

6 
ApI 
yes 
yes 
yes 
yes 
yes 
yes 

6 
EpO 
yes 
yes 
yes 
yes 
yes 
yes 

6 
ApOp 
yes 
yes 
yes 
yes 
yes 
yes 

6 
EpIp 
yes 
yes 
yes 
yes 
yes 
yes 

6 
InO 
yes 
yes 
yes 
yes 
yes 
yes 

6 
OnI 
yes 
yes 
yes 
yes 
yes 
yes 

7 
InOp 
yes 
yes 
yes 
yes 
yes 
yes 
yes 

7 
OnIp 
yes 
yes 
yes 
yes 
yes 
yes 
yes 

9 
IO 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 

11 
IOp 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 

11 
OIp 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 

13 
IpOp 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
yes 
This table is drawn up as follows. First we deal with elementary
propositions, identifying which of them are logically implied by each factor
(downward). Thus for instances, F5 =
(In)(On) implies In,
On, and all their subalterns; F6
= (In)(IOp) implies A, In,
Op, and all their subalterns. Note well that if a particular element
is implicit in all the fractions, a universal element is implied by them
together.
Then we derive the factorization of compounds from that of their
elements, as follows. When two or more disjunctions involving incompatible
alternatives are conjoined, the result is a disjunction of their common
alternatives (if they have only one in common, that is the result; if they have
none in common they are not conjoinable). Thus, to factorize a compound gross
formula, we simply find the common factors of its elements. (See chapter 28.3,
on 'conjunctive multiplication'.)
For example: Since E = F2 or F4 or F7,
and Ip = all factors but F2,
then EIp = F4 or F7. This is because
no two distinct factors, being mutually exclusive integers, can consistently be
conjoined; while a factor conjoined with itself, yields itself as result.
Table 52.1, used to define the 15 integers as conjunctions of fractions,
was read across. If it is read downward, it serves to factorize the 8 fractions;
the fractions being then viewed as disjunctions of the integers which include
them. If we compare the results so obtained to those in table 53.1, we see that
they are the same in all cases except two, note well.
Whereas (IOp) = the fraction f7
has factors F3, F6, F9F11,
F13F15, IOp
= the gross formula has additionally factors F5,
F8, F12. This is because
in (IOp) the extensions of I
and Op are known to fully coincide, while in IOp we do not know whether the extensions of I and Op overlap wholly,
partly, or not at all. Similarly, the fraction (IpO) and the gross formula IpO
are not factorially the same; the former being a disjunction of F4,
F7F8, F10,
F12F15, whereas the
latter further allows the alternatives F5,
F9, F11.
This issue of overlap of particular elements is found in other gross
formulas. Thus, most obviously, in IpOp,
it is not clear whether Ip and Op overlap, or if they do, to what degree. In the case of IO,
it would at first sight seem that they cannot overlap at all, since no instance
of their extension can simultaneously fall under both; but as the factorial
analysis of IO as F5, F8F15
makes clear, overlap may indeed occur involving subalterns of I
and/or O. That is, the gross formula IO
is merely an abbreviation of I+Ip+O+Op,
so that (IpO) or (IOp)
are conceivable fractions within it, though concealed.
The same issue can be raised for most other gross formulas involving
particular elements. Only in 3 cases, mentioned in the next section, is the
issue resolved unambiguously. This shows the inadequacy of gross formulas, their
capacity to mislead, and it shows the value of factorial analysis.
When a gross formula involves a mix of universal element(s) and
particular one(s), the ambiguity concerning overlap is lessened, though rarely
removed. Thus for instance, in AOp, we can be sure that part of the extension of A
is the whole extension of Op, and so
we could make a 'partial factorization' to I+(IOp).
But though this approach may improve our understanding of the situation
somewhat, factorially speaking information is lost. For whereas A+Op
= F3 or F6, the formula I+(IOp)
equals no more than (IOp) alone,
namely F3 or F6 or F9F11
or F13F15. The result is
vaguer and lesser, because (IOp)
implies I in any case.
When a gross formula involves only universal elements, total
overlap is of course assured. But factorial analysis is still relevant, since
without it we might remain unaware that ApEp
not only has the possible outcomes (AEp)
or (ApE), but also has (IOp)(IpO) as an alternative.
Notice in table 53.1 our separation of elements and compounds, and also
the classification of formulas by number of factors. The less factors a formula
has, the closer it is to full definition, and the more knowledge we have.
Ignorance would be disjunction of all 15 factors.
It is interesting to note that only 7 gross formulas have a single
factor, i.e. result in an integer as their factorial equivalent. They are: An,
En, AEp, ApE, AInOp,
EOnIp, and ApEpIO. The
latter three cases are worth stressing, since they provide us with novel
immediate inferences. Without the above systematic approach, it might not seem
evident that the whole extension of the universal element(s) of the gross
formulas are necessarily covered by only the particular fractions shown in these
corresponding factorials.
AInOp = F6
= (In)(IOp), meaning: 'All S
are P and some S must be P and some S can notbe P' equals 'Some S must be P,
and some other S are P but can notbe P'.
EOnIp = F7
= (On)(IpO), meaning: 'No S
is P and some S cannot be P and some S can be P' equals 'Some S cannot be P, and
some other S are not P but can be P'.
ApEpIO = F10
= (IOp)(IpO), meaning: 'All
S can be P and all S can notbe P, and some S are P and some S are not P' equals
'Some S are P, but can notbe P, whereas some other S are not P, but can be P'
All other gross formulas yield factorial formulas with more than one
alternative; they are deficient stages of knowledge. Nevertheless, they are very
valuable in this form, as will be seen when we deal with modal induction.
It also interesting to note that the 49 gross formulas, which are an
exhaustive list (within natural modality) as we showed, are able to express only
7 of the 15 integral states of being (within this closed system). More than half
the integers are inaccessible to this gross manner of formulation, namely F5,
F8F9,
F11F15!
This shows the importance of the concepts we have introduced in this
study. Without them, Logic cannot fulfill its task. And indeed, in everyday
thought and discourse we commonly use such complicated statements as 'Some S are
P, and these can notbe P, while some others are always P'. Such
statements try to clarify the deployment of the extension, and are efforts
towards factorial analysis.
There are in fact a total of 2 to the 15th power, minus 1 = 32,767 ways
to disjoin the 15 factors F1F15.
Any combination of one, two, three… up to 15 of them, is conceivable. Fifteen
of these ways are the integers in isolation: they represent full knowledge. One
way, the disjunction of all 15 factors, represents total ignorance (equivalent
to saying nothing, except the formal truth that one of the factors must be
applicable eventually). In between, we are left with 32,751 states of knowledge
involving varying degrees of ignorance.
The 49 gross formulas thus represent only a very small number of the
possible states of knowledge. As we said, they include only 7 of the 15
integers, and therefore only 42 of the 32,751 intermediate states. They may be
the most common states of knowledge, being simple of expression; but as a
system, gross formulation is very defective. It is incapable of expressing the
finer gradations, the nuances, of information accessible to factorial analysis.
As knowledge unfolds, we move from one formula to the other. There is a
dynamic process. One may first discover, whether deductively or inductively,
that A is true, say; then Op
is found true, and our knowledge adds up to AOp;
then perhaps O is seen true,
contradicting A, so we may suppose IO
true instead; and so on. As our opinions shift around, reflecting new
observations, new insights, new efforts of reasoning, we adopt an alternative
formula to express our contextual position.
Factorial formulas are simply more precise tools than gross formulas, for
handling such changes in data. Knowing exactly how many and which integers are
still open, and how many and which integers are already excluded, the pursuit of
full knowledge becomes more efficient. The goal is to eliminate all alternative
integers from the list of possibilities, until only one remains: then our
knowledge concerning the subjectpredicate in question is clear. We may at a
later stage acquire new information, which once again puts us in doubt, but in
any given context factorial analysis lets us know where we stand.
Note that it may be — I am just guessing — that some of the deficient
states of knowledge are equivalent to fractions or integers composed of
conditional propositions. This is uncharted territory, I have not looked into
it; but it seems likely, since categoricals and conditionals are particles of
intersecting continua.
The above concerns, remember, the closed system of natural modality; or,
by analogy (substituting c, t
suffixes for n, p), that of temporal modality. But these, though used independently,
are relatively artificial. It is only when we consider the two types together,
in an open system, that our results are absolute, realistic. This will now be
done.
We saw that in mixed modality (limiting ourselves to consideration of
plurals), there are 12 fractions, from which 63 integers can be constructed. It
follows that, here, there are 2 to the 63rd power, minus 1 = 9.2233 X 10 to the
18th power factorial formulas. That is, 9 million million million distinct
states of knowledge, concerning any given subject to predicate relation! Of
these 63, the onefactor formulas, are full knowledge; one, the 63factor
formula, is total ignorance; and the remainder are intermediate states,
involving 2 to 62 factors in different disjunctive combinations.
We identified 20 elementary propositions, yielding 175 compounds, a total
of 195 gross formulas. These are the most common states of knowledge, worthy of
special attention, but still only a minute part of the total picture. These are
analyzed factorially in Appendix 1,
for the record. Though the table is parked separately because of its
bulk, it is important. It is split into several segments for reasons of space,
but they should be read as one.
The method used to develop it is the same as for the closed systems.
First, we identify the elements implied by each of the 63 integers, viewing its
fractions (if more than one) both individually and collectively. The factorial
formula corresponding to an elementary gross formula is then a disjunction of
all the integer(s) which imply it, since the list of integers is complete.
Thereafter, we derive the factor(s) of a compound, simply by identifying the
common factor(s) of its constituent elements.
Similar comments to those made previously apply here, concerning overlap.
Especially note the difference between the factors of the fractions (IOt)
and (ItO), given in table 52.2 and
numbering 32 each, and the factors of the gross formulas IOt and ItO, given in the
appendix and numbering 53 each (including the 32 of the corresponding fraction).
Note that here we have 11 gross formulas resulting in a single factor;
namely the 6 universal factors (An),
(En), (AcEp), (ApEc),
(AEt), (AtE), plus the
following 5 compounds:
AcInOp 
= 
F8 
= 
(In)(IcOp) 
EcOnIp 
= 
F9 
= 
(On)(IpOc) 
AIcEpOt 
= 
F17 
= 
(IcOp)(IOt) 
EOcApIt 
= 
F18 
= 
(IpOc)(ItO) 
AtIEtO 
= 
F21 
= 
(IOt)(ItO). 
These equations can be interpreted like the corresponding closed system
equations were. The reader should recite or write their explicit meaning, to see
how unexpected these results are. Without factorial analysis, we would have
great difficulty finding, understanding or proving these inferences.
Thus 52 integers remain unexpressed by gross formula statements, and can
only be specified through fractional notation. All gross formulas other than
these 11 have more than one factor; the maximum number of factors for elements
being 62, for Ip and Op, and for
compounds being 61, for IpOp.
Note also that the fractions and integers specific to natural or temporal
modality could be factorized in the open system. This is not done here, to avoid
further complications and because the results are not needed in subsequent
discussion. But the reader is invited to do it, as a significant exercise, with
a warning not to ignore overlap issues.
Other possible developments include: factorial analysis of stereo
integers, of transitive categoricals and fractions and integers of them, and of
all types of conditionals.
Many of the factorial formulas resulting from such analysis, may
intersect in meaning with those considered here; I mention this as a
speculation, to suggest to future logicians that they look for eventual
equations.
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