Quote:
Originally Posted by lagtight
The Tenth Amendment is not a tautology.
If was a tautology, it would be literally impossible for any federal, state or local law to violate it.
Edit:Has the SC ever struck down a law because it violated the 10th Amendment?
I don't have any comment on the 10th amendment per se, but rather on your loosey goosey logic there.
If something is a tautology, it means redundant as far as formal logic is concerned.
For example, if a > b, and b > c, saying a > c would be a tautology.
We can come up with any number of values for a, b and c that violate all three of those inequalities, but showing that a specific set of values (e.g. a= 5, b = 4, c= 6) violate the third condition would be sufficient to demonstrate that they also violate at least one of the other two conditions. However, if they meet both initial conditions, they must also meet the third condition. Ergo, the third condition is a tautology - the two initial conditions are both necessary and sufficient to establish it.
As far as this transaltes to the present discussion, I believe that what Wookie is saying is that the 10th amendment is a useful shortcut for arguing principles that are already established in law elsewhere.