[MD] Putnam on Is-Ought and Truth

[craigerb at comcast.net]

[Craig, previously] 
[P1] Socrates is a man. 
[P2] A man is mortal. 
[C1] :.Socrates is mortal. 

[Steve] 
> What is implicit and agreed upon in advance without needing to be 
> stated is a premise P3 that tells us that such premises like P1 and P2 
> when taken together ought to make us conclude the sorts of claim that 
> you have concluded. Without such an additional ought-premise your 
> conclusion would be unwarranted. 

You're confusing inference rules with premises. 
Antidote @ 
http://www.ditext.com/carroll/tortoise.html 


The inference rule states that if each premise IS true, then the conclusion 
also IS true.  What you ought to conclude is an additional question. 

Craig