Reformed Logic: A System Based on Berkeley's Philosophy with an Entirely New Method of DialecticMcLachlan, D. B.
Philosophy
Reformed Logic: A System Based on Berkeley's Philosophy with an Entirely New Method of Dialectic
McLachlan, D. B.
Logic
I.
Innocent persons | deserve protection
--------------------------------+--------------------
This person deserves protection | _N. C._
***
'He who cannot possibly act otherwise than he does, has neither
merit nor demerit in his action; a liberal and benevolent man cannot
possibly act otherwise than he does in relieving the poor; therefore
such a man has neither merit nor demerit in his action.'--To 'have
merit in an action' is scarcely intelligible. A man's merit is in his
character, and his actions are effects and signs of character.
***
'All the fish that the net inclosed were an indiscriminate
mixture of various kinds; those that were set aside and saved
as valuable were fish that the net inclosed; therefore
those that were set aside and saved as valuable were an
indiscriminate mixture of various kinds.'
An instance of the fallacy of division: what is true of the whole
contents of the net is not necessarily true of a portion of the
contents.
***
'A desire to gain by another's loss is a violation of the tenth
commandment; all gaming, therefore, since it implies a desire to
profit at the expense of another, involves a breach of the tenth
commandment.'--A valid argument in inherence.
All desire to gain by, &c. | violates
------------------------------------+--------------
Gaming involves this kind of desire | _it violates_
***
'He that destroys a man who usurps despotic power in a free country,
deserves well of his countrymen; Brutus destroyed Caesar, who usurped
despotic power in Rome; therefore he deserved well of the Romans.'--If
Rome was 'a free country' the conclusion is valid.
***
'No fish suckles its young; the whale suckles its young; the
whale is therefore no fish.'
I.
What suckles | is no-fish
--------------|----------------
Whale suckles | _it is no-fish_
***
'This explosion must have been occasioned by gunpowder, for
nothing else would have possessed sufficient force.'
V.
Explosions of a certain | can only be occasioned by
destructiveness | gunpowder
------------------------+--------------------------
This explosion has that | _it must have been
destructiveness | occasioned by gunpowder_
***
'Every man should be moderate, for excess will cause disease.'
V.
To avoid disease | moderation is requisite
-----------------------+------------------------
Every man should avoid | _every man should
disease | be moderate_
***
'Blessed are the merciful, for they shall obtain mercy.'
I.
To obtain mercy | is blessed
---------------------+---------------------
Those who show mercy | _they must be
obtain mercy | considered blessed_
***
Public-domain text, read in full here on John Shaqi.
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