science of logic vol 1 - coffey

477

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truths
of
science
are,
of
students
in
other
colleges
and
universities.
It
has
Eductions
229
117.
Obversion
230
118.
Conversion
232
119.
Contraposition
241
or intellect
to
assist
me.
If
I
want
2.
;
idea,
man,
for
the
purpose
of
interpreting
for
ourselves,
or
giving
a
meaning
to,
the
indivi
dual
objects
John,
James,
known
object.
Furthermore,
when
more or
;
the
same
faculty
the
serting
universal
attributes
about
individual
things.
For
every
object
conceived
by
indefinite multitude.
those
things
in
such
judgments
as
"John
derived from
by
pointing
out
any
body
else
s
only
answer
that
idea
erroneous view of the nature of the human mind : the
view, namely,
implies
a
perception
of
true
judgments
fabrilis,
per
quas
homo
faciliter
aid of
a middle
logic
will
deal
with
predicate
logic.
It
is
which
it
appears
the laws
same
time
and
under
the
same
respect:
Idem
non
potest
be
B
every
the latter without
validity
is
absolutely
universal
and
entirely
independent
thought
tests
larger questions
the
unifica
tion
as
objects,
not
now
as
simply
existing
in
themselves,
The
psychological
analysis
and
explana
tion
of
our
language,
and
investigates
their
the minds
before
the
science
1
i.e.
including
to
philosophy.
Of
course
the
exclusive
study
of
The
English
mind
has
never
been
remarkable
for
attitude,
for
instance,
towards
the
traditional,
deductive,
abstract
logic,
was
unsympathetic.
Yet,
in
the
main,
physical
sciences
in
the
seventeenth
and
subsequent
centuries
led
men
to
the act
a
logical
4*
it is known
from
the
context
a collective
group
or
(gold
or
salt)
in
existence,
drinking";
objects
indicated
by
it
has
been
partially
examined
certain extent con-
less
to
the
class,
though
having
no
apparent
connexion
with
the
funda
mental
attributes,
or
other
of
those
Describing
the
relation
of
a
and
more
easily
understood,
1
and
bringing
before
the
mind
prominently
the
individual
units
characterized
by
a
certain
quality
and
analogy
of
the
things
the name of
an abstract term
class
to
its
the
only
having
pointed
out
contradictories.
This
opposition
may
it
cannot,
be
predicated
concepts
or
terms
have
contraries,
but
only
those
occupying
any
degree
of
incompatibility.
our
exposition
of
the
results
are
here
reached
that these
root-principle
can
purse,
nor
mere
membership
compared.
"
us,
and
which
is
in
many
ways
the
most
important,
is
logicians
to
de
scribe
these
latter
qualities
may
be
developed
in
biological
logical
classes
in
question
is some one
connotation of
always
in
every
member
of
two
or
a conclusion
or
conditions
of
space
and
number
are
ever
the
same,
geometry,
we
must
substitute
classification
commensurable
subject
of
species,
and
unessential
to
state in which we
is that
the attribute
a class
concept
of
property,
object
well as
crystallized product
value lies
in the
diagnostic
i.e.
features
by
So
long
names
defini
tion
of
animal:
"What
do
you
mean
by
(and
with
them
to
this.
All
language,
intimate such
possibly
undertake
to
expound
in
any
that
many
disputes
1
In
case
of
Exemplification
Religion,
denying
visible
head
is
the
Pope
and
intended
by
the
maxim
"
Initium
disputandi,
definitio
nominis
".
All
science
.
.
.
definition
organisms,
odd
into the
a
given
genus,
Verbal
Division.
definition
(informal
logic)
is
justified
only
because,
connotation,
we
the
that class
exhibit
its
sub
wanting
in
any
positive
specifying
character,
being
expressed
by
purely
negative
terms
dichotomy
will
not
help
us
by
a
logical
division.
This
mous
con
sideration,
1
We
may
say
at
once
that
this
is
already
number
of
divisions
and
subdivisions,
selecting
copy
"
for
their
own
sakes
"
establish them
at
by
a
scheme
of
"
with
the
origin
and
descent
logic,
for
it
in
every
such
system
another,
by
them,
e.g.
"
"pushing,"
categories
subject;
be
brought
under
this
category
(/celcrOai),
they
could
be
knowledge,
must
in
evitably
give
: the
words
of
a
dictionary,
for
example,
are
neither
true
nor
false.
Truth
or
conscious
that
if
at
any
instant
we
are
to
judge
truly
about
any
matter,
we
cannot
judge
just
as
we
please.
Not
propositions,
in
meaning,
a
becoming
an
of
judgment
itself,
are
questions
of
right
and
wrong,
us as
just
grounds
that
"
two
straight
lines
four
".
The
point
will
exempted
perpetually
from
these
disintegrating
concrete,
actual,
exist
ing
order
of
things,
analytic
it
(223-4).
The
upon
them
by
the
than
that
of
asserting
what
actually
is
predicate
in
each
case
is
necessarily
connected
with
(or
excluded
from)
the
nature
of
the
subject,
and
may
some
the
predication
a
state
ment
"
about
unnamed
individuals
"
really
a
negative
proposition
s
comparatively
proximate
genus
of
the
subject
or
"Virtue
is
not-blue
".
We
have
already
2
referring
to
the
whole,
or
to
an
indefinite
portion,
of
it
at
once
of
the
chief
to
be
found
elsewhere
among
the
/"s,
for
general
logical
processes
than
the
Y
form.
The
I
proposition
will
be
the
same
as
in
the
predicative
scheme.
asserts.
possible,
ways
through
the
connotation
;
universal
and
the
particular
of
the
same
quality.
The
universal
is
called
the
subalternant
deny
P
at
least
of
the
S
s
is
P
of that
of
proposition.
of
the
former,
we
leave
place
for
a
mean
of
the
original
: both
may
is true
greater
strength
of
1
Evidently,
and
negative
singular
in
the
proper
and
We have dealt
inference"
of
I
immediate
inference.
Aristotle
s
attempt
to
prove,
or
rather,
to
illustrate
indirectly,
the
process
of
meaning
convert an
accident."
pretend
otherwise.
are
(the)
poor
".
"
Great
is
Diana
of
the
Ephesians
"
converts
to
"
Some
con-
trapositive
form
given
above.
categorical
pro
positions.
We
simplify
matters
somewhat
by
substituting
for
"not-/
3
".
"
Whatever,
(whoever)
is
(are)
not
clergymen
Parlia
inverting
A,
that
distributed,
justifies
the
distributed
P
3
that
"
Thus,
from
"
Theft
is
deserving
of
punishment
"
and
"
Unemployed
workmen
are
objects
denoted
by
its
subject
or
predicate
in
sphere
capable
of
existing
in
some
"twice,"
"four,"
"ten,"
that the
to
the
opposite
reason.
"No
women
E,
are
also
invalid,
2
a
statement
which
does
not
deny
the
truth
1
These
forms
will,
of
course,
remain
valid
if
the
s
by
Dr.
Keynes
seems
to
be
an
impracticable
supposition,
i.e.
or
dependence
something
which
may
be
scarce,
and
is
dear
when
scarce
of
judgment.
problem
"
(JOSEPH,
op.
cit.,
p.
166).
This
problem
conditionals
: to
distinguish
them
from
the
following
class,
which
of
these
is
that
they
do
not
E
If
apo-
deictic,
but
not
vice
versa,
whether
we
are
dealing
with
two
cate
goricals,
two
conditionals,
or
one
of
each
two
propositions
;
that
being
M
this
relation
must
5
reciprocal hypothetical,
causes,
1
but
No
doubt,
the
different
channels
of
proof
M
M,
it
the
antecedent
it
is
diffi
cult
to
the
follow from the ante
be
interpreted
from
I
pen
is the
fallacy
not
always
avoided.
"If
mind that
logicians generally
to
admit
of
simple
categorical
statement,
and
that
the
form
"Either
A
or
copulative,
but
simple,
categorical
propositions.
From
the
examples
given
above
we
the
Q.
premiss,
not
equivalent
to
by
Dr.
Keynes
interpreted
as
"
the two alternatives
this
latter
way
it
must
be
interpreted
the
disjunctive
"
grounds.
Professor
Welton,
following
Bosanquet,
holds
that
the
disjunctive
con
tains
some
positive
or
categorical
element
not
contained
in
the
hypothetical.
latter,"
yield
exactly
respectively.
In
Universal.
Q.
Full
Inverse
mediating
term,
or
common
standard
of
reference,
by
which
we
pass
from
premisses
arguments
and
reasons
The
formally
valid
syllogism
must
presuppose
and
meaning
of
sttbject
in
the
major
premiss
which
should
lay
down
a
universal
principle
and
predicate
in
the
minor
premiss
major
premiss
in
the
syllogism
itself.
its
extension
the
subject
of
the
conclusion,
may
be
definitely
predicated
relation of
term be distributed
 
rule of
;
is
connected
with
the
by
the
any
can
might
par
ticulars
nothing
another.
Abstracting
from
the
E.
If
compared.
(c)
The
first
part
of
Rule
(6)
the
syllogism
;
are
not
distinct
P
e
S,
the
existence
of
whose
predicate,
S,
was
not
given
it
when
so
(C):
S
e
M
I
S
eP
P
e
S
S
e
P
<
S
eP
That
under
pain
of
contradicting
him
self.
It
was
in
this
way
that
the
Scholastics,
following
Aristotle,
proved
the
validity
good
in
the
mnemonic
lines
given
in
some
really necessary
not
A
bloom
in
summer,
of
possesses
or
carries
what
it
excludes
[M]
".
3
172.
CHARACTERISTICS
important
than
their
number.
"
Again,
we
might
meet
a
Privy
figure
our
inference
manifestly
same
"
some
"
were
by
Aristotle
We have seen
direct.
being
Bocardo
may
be
reduced
directly
other
negative.
Thus,
we
have
in
the
Modus
Ponens
or
5
alternatives
is
true
[and
that
possibly
all
are
true
(145)].
The
negative
categorical
Modus Tollendo Ponens of
(180),
the
reasoning
might
element
of
first
figure,
so
can
the
Modus
Tollens
simple
destructive
dilemma
G
is
H;
but,
either
is
H]
inferences
from
hypo-
theticals
or
consequent.
But,
furthermore,
"
"useful".
:
argument
which
are
really
mixed
hypothetical
or
mixed
disjunctive
syllogisms.
2
be
a
disjunctive
premiss.
THOMSON
minor,
and
Sorites
used
by
Aristotle.
us
mediately
the
figures
of
some
general
particular
or
indefinite
(93)
propositions,
1
without
the
tacit
intervention
of
any
universal
principle
we
shall
principle,
hardly
syllogism
can
hardly
be
governing
concept
as
a
"
secunda
intentio
mentis
".
abstracted,
and
The mental
act of
"
consistency
"
aspect.
But
judgments
which
constitute
its
small number
of immediate
theory
can
be
true
"
shape
get
our
knowledge
of
these
premisses,
especially
of
universal
premisses,
and
of
the
universal
axioms
to certain
"
collected
by
the
time-worn
objection
not
yet
actually
possessed
in
consciousness,
world s
history gradually
many
possible
ways,
at all.
par
ticular
it,
while
our
conclusion
cases can
answering
:
con
cepts.
knowledge.
How
do
acts
of
the
senses
differ
from
acts
of
the
intellect
distinction
between
"
formal
"
and
"
material
"
logic
been
understood ?
Distinguish
between
conception,
judg
ment,
and
reasoning.
Explain
directions
intension
and
extension.
Distinguish
term. Are
?
biologists
attach
to
the
terms
at
least
once.
Illustrate
by
Euler
Express
this
reasoning
in
amples.
Define
Indirect
Proof.
On
what
principles
Reduction.
views of
conclusion
presence
of
a
definition
in
the
premisses
involve
the
fallacy
? To
what
erroneous
theory,
Coffey,
Peter,
1876-
The