Philosophy

[mrdevious]

Dude, modus ponens and modus tollens aren't fallacies, they're two of the most basic forms of valid logic. I think you're confusing "affirming the antecedent" and "denying the consequent" for "denying the antecedent" and "affirming the consequent".

Modus Ponens
If A then B
A
Therefore B

Modus Tollens
If A then B
~B (not B)
Therefore ~A

I could be wrong on that, but I thought they were fallacies. I remember Modus Ponens being:

If A, then B.
therfore, if B then A.

ah hell I don't know anymore, I hated my philosophy course anyway.