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

96
IMMEDIATE INFERENCE.
Give the obverted inverse of
(g) Every truthful man is trusted.
(h) No unjust act is worthy of praise. [Welton.]
(10) "A St Bernard dog is certainly a dog ; but a small
St Bernard dog is not a small dog." Comment on this.
(11) What is the logical relation, if any, between each of
the following pairs of statements :
(12) ;
(a)
(b)
Heat expands bodies cold contracts them.
;
" A false balance is an abomination to the Lord ;
(c)
but a just weight is His delight."
He that is not against us is for us ; he that is not
for us is against us.
"To live well is better than to live
hence
not to live
is better than to live badly." Examine this. [L.]
(13) "Some political organisations ought to be con
demned." Can you upon any principle draw the inference
" Some
"
political organisations ought to be commended ?
[.]
(14) "Everything which has come into being has a be
therefore what has not come into being has not a
ginning ;
beginning." Is this a valid Immediate Inference? [St A.]