I came across a validation method for testing the validity of a syllogistic argument which seems quite easier to grasp:
To test the argument:
no P is B some C is B Therefore, some C is not P
1.) Star premise letters that are distributed and conclusion letters that aren't distributed.
2.) Then the syllogism is VALID if and only if every capital letter is starred exactly once and there is exactly one star on the right-hand side.
no P* is B* some C is B Therefore, some C* is not P
Now, we can say that the argument is valid because it meets the requirements for it to be valid but I don't exactly understand what is the proof behind this star test method.
Such as where does the validation ideas come from and what is the answer to:
Why or what makes it valid when there is exactly one star on the right hand side?
Why or what makes it valid when a capital letter is starred exactly once?