11. Fallacy of existential import All P are M.(All horses are animals No s are m.(No et are animals) Therefore, Some s are not P(Some et are not horses) 16
16 • 11. Fallacy of existential import: • All P are M. (All horses are animals) • No S are M. (No ET are animals) • Therefore, Some S are not P. (Some ET are not horses)
A syllogism can commit more than one mistake Some p are m Some m are s Nos are p 17
17 • A syllogism can commit more than one mistake: • Some P are M • Some M are S • No S are P
The above examples are just shown for illustration purpose From now on,I assume that you would not commit those mistakes simply because you know the right rules
18 • The above examples are just shown for illustration purpose. From now on, I assume that you would not commit those mistakes simply because you know the right rules
Informal fallacies There are five main types of informal allacies, comprising a total of 20 cases There are 5 main types A)Fallacies of relevance B)Fallacies of weak induction C)Fallacies of presumption D)Fallacies of ambiguity E) Fallacies of grammatical analogy 19
19 Informal Fallacies • There are five main types of informal fallacies, comprising a total of 20 cases. • There are 5 main types: – A) Fallacies of relevance – B) Fallacies of weak induction – C) Fallacies of presumption – D) Fallacies of ambiguity – E) Fallacies of grammatical analogy
In many subjects such as English, the teachers correct your writings not because you have made grammatical mistakes. Very often. marks are deducted because your passages contain the following problems
20 • In many subjects such as English, the teachers correct your writings not because you have made grammatical mistakes. Very often, marks are deducted because your passages contain the following problems