I Know Something If, and Only If, I Have Some

question 164

Multiple Choice

I know something if, and only if, I have some causal contact with the physical world. If I know something, then there is no demon deceiver. I know something. So, I know something just in case both I have causal contact with the physical world and there is no demon deceiver.
-Working backward from the conclusion of this argument, which of the following is the most likely justification of the last step of the derivation?

• A) BMP
• B) BMT
• C) BAssoc
• D) BHS
• E) Equiv