quiz 10 Flashcards
What is a polysyllogism? Explain, in your own words, how a polysyllogism is structured.
A syllogism that links together several syllogisms in such a way that the conclustion of one syllogism serves as a premise for another.
What are the two kinds of sorites called?
Aristotelian and Goclenian
What is an Aristotelian sorites?
Series of Fourth (or Indirect First) Figure syllogisms with all of the conclusions unexpressed except the last.
Show the form of the Aristotelian sorites using the letters U, V, X, Y, and Z,
All U is V, All V is X, All X is Y, All Y is Z, Therefore, all U is Z.
In what way are sorites similar to polysyllogisms?
1) both complex syllogisms; 2) the validity of both depends on the validity of each of the component syllogisms.
In what two ways are sorites unlike polysyllogisms?
1) conclusions of each of the components are unexpressed; 2) the predicate of the preceding premise is always the subject of the following
What are the three steps for determining the validity of sorites?
1) Put into standard form; 2) Provide missing conclusions; 3) Test each resulting component syllogism for validity.
True or false
There are four kinds of complex syllogisms: polysyllogisms, epicheirema, Aristotelian sorites, and
Goclenian sorites.
false
True or false
A polysyllogism is a syllogism that links together several syllogisms in such a way that the
conclusion of one syllogism serves as a premise in the next one.
true
True or false
The sorites is a chain argument which, through a chain of premises (without the intermediate
conclusions), connects the predicate of the first premise with the subject of the conclusion
false
True or false
There are two kinds of sorites: the Aristotelian and the Galenic.
false
True or false
The Aristotelian sorites is a series of Fourth (or Indirect First) Figure syllogisms with all of the
conclusions unexpressed except the last.
true
