1. Religion & Spirituality

Your suggestion is on its way!

An email with a link to:

http://atheism.about.com/library/glossary/general/bldef_deductive.htm

was emailed to:

Thanks for sharing About.com with others!

Most Emailed Articles

The Bible and Suicide

deductive argument
<Back to Last Page >     <Glossary Index>

 Related Terms
• inductive argument

 

Definition:
A deductive argument is one in which it is claimed that it is impossible for the premises to be true but the conclusion false. Thus, the conclusion follows necessarily from the premises and inferences. In this way, it is supposed to be a definitive proof of the truth of the claim (conclusion). Here is an example:

1. All men are mortal. (premise)
2. Socrates was a man. (premise)
3. Socrates was mortal. (conclusion)

Deductive arguments are based upon the concept of deduction, which involves starting from some general law or principle and concluding from it a particular fact which falls under that general law. Above, the general principle is "all men are mortal" and we conclude from it the particular case that "Socrates was mortal."

Also Known As: none

Alternate Spellings: none

Common Misspellings: none

Related Resources:

What is the Logic and the Philosophy of Language?
The two fields Logic and the Philosophy of Language are often treated separately, but they are nevertheless close enough that they are presented together here. Logic is the study of methods of reasoning and argumentation, both proper and improper. The Philosophy of Language, on the other hand, involves the study of how our language interacts with our thinking.

What is Philosophy?
What is philosophy? Is there any point in studying philosophy, or is it a useless subject? What are the different branches of philosophy - what's the difference between aestheitcs and ethics? What's the difference between metaphysics and epistemology?

<Back to Last Page >     <Glossary Index>
You can opt-out at any time. Please refer to our privacy policy for contact information.

Discuss in my forum

©2014 About.com. All rights reserved.