To Traveler:
"if some Cs are As and all Bs are Cs, then all As are Bs., ‘true’?"
First off, the answer is false...
Some Cs are As, and all Bs are Cs... why would As be Bs?
If you need me to explain further, here it goes:
Some Cs are As, fine (argument 1)
All Bs are Cs, thus we can...