10 Mar '09 20:21>1 edit
Originally posted by Badwaterbut I believe they mean cause and effect.
Per your link, the first sentence:
"Logic is the study of the principles of valid demonstration and inference."
Sorry that Wiki went polysyllabic on you, but I believe they mean cause and effect. 😉
Within the context of the subject of this thread, what I said was accurate.
Why would you believe that when cause and effect have nothing inherently to do with "principles of valid demonstration and inference"? Your claim before that logic is nothing more than examination of cause and effect is simply wrong.
Here's a trivial example to see that you are way off-base. In everyday conversation, you probably make statements of causality of the form "if...then" where the antecedent and consequent are supposed to follow a certain temporal order. If logic was only in the business of cause and effect, then logical "if...then" statements should also characteristically be statements of causality, right? But that is just not the case. For example, the material conditional in logic (which can be stated within the form "if...then'😉 has nothing to do with causality. For instance, it doesn't require there to be a certain temporal relation between the antecedent and consequent. Rather, the material conditional is a truth-functional connective whose truth value just depends on the individual truth values of the antecedent and consequent. In first-order logic, the material conditional "If 1+1=2, then George W. Bush was the 43rd President of the United States of America" is true. You're telling us that this is a statement of cause and effect?