FREE BOOKS

Author's List




PREV.   NEXT  
|<   113   114   115   116   117   118   119   120   121   122   123   124   125   126   127   128   129   130   131   132   133   134   135   136   137  
138   139   140   141   142   143   144   145   146   147   148   149   150   151   152   153   154   155   156   157   158   159   160   161   162   >>   >|  
ese drawbacks to avoid the inelegance and the tedium of a long discourse in accurate syllogisms. Many departures from the strictly logical statement of reasonings consist in the use of vague or figurative language, or in the substitution for one another of expressions supposed to be equivalent, though, in fact, dangerously discrepant. Against such occasions of error the logician can provide no safeguard, except the advice to be careful and discriminating in what you say or hear. But as to any derangement of the elements of an argument, or the omission of them, Logic effectually aids the task of restoration; for it has shown what the elements are that enter into the explicit statement of most ratiocinations, namely, the four forms of propositions and what that connected order of propositions is which most easily and surely exposes the validity or invalidity of reasoning, namely, the premises and conclusion of the Syllogism. Logic has even gone so far as to name certain abbreviated forms of proof, which may be regarded as general types of those that actually occur in debate, in leading articles, pamphlets and other persuasive or polemic writings--namely, the Enthymeme, Epicheirema and Sorites. Sec. 2. The Enthymeme, according to Aristotle, is the Syllogism of probable reasoning about practical affairs and matters of opinion, in contrast with the Syllogism of theoretical demonstration upon necessary grounds. But, as now commonly treated, it is an argument with one of its elements omitted; a Categorical Syllogism, having one or other of its premises, or else its conclusion, suppressed. If the major premise be suppressed, it is called an Enthymeme of the First Order; if the minor premise be wanting, it is said to be of the Second Order; if the conclusion be left to be understood, there is an Enthymeme of the Third Order. Let the following be a complete Syllogism: All free nations are enterprising; The Dutch are a free nation: .'. The Dutch are enterprising. Reduced to Enthymemes, this argument may be put thus: In the First Order: The Dutch are a free nation: .'. The Dutch are enterprising. In the Second Order-- All free nations are enterprising; .'. The Dutch are enterprising. In the Third Order-- All free nations are enterprising; And the Dutch are a free nation. It is certainly very common to meet with arguments whose statement may be represented by one
PREV.   NEXT  
|<   113   114   115   116   117   118   119   120   121   122   123   124   125   126   127   128   129   130   131   132   133   134   135   136   137  
138   139   140   141   142   143   144   145   146   147   148   149   150   151   152   153   154   155   156   157   158   159   160   161   162   >>   >|  



Top keywords:

enterprising

 
Syllogism
 
Enthymeme
 

elements

 
argument
 
nation
 

conclusion

 

nations

 

statement

 

Second


premises

 

propositions

 
suppressed
 

premise

 
reasoning
 

treated

 

reasonings

 
commonly
 

grounds

 

omitted


Categorical

 

strictly

 

called

 

logical

 

demonstration

 
Aristotle
 

Epicheirema

 

Sorites

 
probable
 

contrast


consist

 

theoretical

 

opinion

 

matters

 
practical
 

affairs

 

departures

 

Reduced

 

Enthymemes

 
represented

arguments
 
common
 

drawbacks

 

syllogisms

 

understood

 

wanting

 

accurate

 

tedium

 
inelegance
 

discourse