Distinctions Between Logical Invalidity and Falsity

17,536
7,136
Validity and truth do not have to go hand-in-hand and here's why...

http://physicspost.com/articles.php?articleId=177 [Broken]
 
Last edited:

HallsofIvy

Science Advisor
Homework Helper
41,711
876
Though I notice that the author starts out by saying
One common misconception among people is that an argument is immediately false if determined invalid (and vice versa).
but immediately switches to
There is distinction between the validity of a conclusion and whether the conclusion is true or not.
confusing the "argument" with the "conclusion".
 

jcsd

Science Advisor
Gold Member
2,085
11
yes, I have to say I agree with Hall's of Ivy, the article has told us nothing that wasn't known and fails to seperate the argument from the conclusion (which is a common reson for the fallacy that because an argument is invalid the conclusion is false)
 
247
0
Yeah then he goes on saying,

"In conclusion, arguments can be true and invalid simultaneously. At the same time, they can be false and valid as well. Validity and truth concerning arguments are not dependent on one another so care should be made as to determining the truth of an argument based on the validity."

He jumped all over the place.
 

Related Threads for: Distinctions Between Logical Invalidity and Falsity

Replies
7
Views
706
  • Posted
Replies
9
Views
2K
Replies
9
Views
3K
  • Posted
Replies
4
Views
1K
Replies
8
Views
2K
Replies
18
Views
4K
Replies
16
Views
6K

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving

Hot Threads

Top