Quote:
Quote by: Alive  Nothing can be proven even if two premises are assumed true. More specifically, an infinite number of premises have to be assumed true to make a proof; including unstated premises (that is, you can never state all the premises you must assume to prove something.) |
He specifically said, "Syllogistic Proof." It is basic logic and he is correct given that the form of the syllogism is correct. For example:
All horses have 4 legs
That animal has 4 legs
Therefore, that animal is a horse.
is incorrect even if both premises were true.
Nothing is better than heaven
Half a loaf is better than nothing
Therefore, half a loaf it better than heaven.
The form is correct, and if you accept both premises, it is still invalid since 'nothing' is used with two different definitions.
By the way, in logic, the syllogistic arguments are known as proofs. Any other premise is irrelevant if you accept the two in any argument as true.