An introductory text-book of logic - Mellone, Sydney - Rare Books at ...

THE LOGICAL PROPOSITION. 59
such expressions into Subject, Predicate, and Copula
makes us familiar with what they imply, and strengthens
the habit of exact interpretation.
Statements are frequently met with which combine
two or more propositions, which have to be distinguished
and separately stated in the reduction to logical form.
Such compound propositions were called by the older
logicians exponible. The most common instance is the
connection of propositions together by simple con
junctions, such as "and," "but," "although,"
theless," &c. These are easily analysed.
(1) "France and Germany
equivalent to
(2)
J (a) France resolved on war.
resolved on war.
( (b) Germany
"never
resolved on war" 1
"
Gold and silver are precious metals "-
J (a) Gold is a precious metal.
( (b) Silver is a precious metal.
(3) "The great is not good, but the good is great"
(4)
(5)
(6)
j (a) The great is not good because it is great.
(
(/>>) The good is great.
"
"-
He is poor but dishonest
" The
" Men
J (a) He is poor.
( (f) He is dishonest.
"
more the merrier
(a) A given number is enough for some
merriment.
(b) More will produce greater merriment.
who are honest and pious will never fail to
be respected, though poor and illiterate ; provided they
"
are
self-supporting, but not if they are paupers (Venn).
1 The word and in the Subject occasionally makes it collective,
and then the proposition is not compound: "two and two make
four."
is