using the four rules of inference presented in section 7.1 (mp mt ds and hs) construct a proof for the following valid argument in the answer box...

using the four rules of inference presented in section 7.1 (mp mt ds and hs) construct a proof for the following valid argument in the answer box below. 1. (R>L)>(L>~F).........premise2. ~Fv(R>L)..................premise3. ~~F................./~R...... premise/conclusion