SOLUTION: Using Conditional Proof I need help i'm very lost N>(F&A) B>(R&F) /(NvB)>(A&R) Please and thank you

 1.  N>(F&A)
 2.  B>(R&F)
           /(NvB)>(A&R) 

 3. (NvB)>(F&A)            1, addition
 4. (BvN)>(R&F)            2, addition
 5. (NvB)>(R&F)            4, commutation
 6. (NvB)>[(F&A)&(R&F)]  3,5, composition  
 7. (NvB)>[(A&F)&(R&F)]    6, commutation
 8. (NvB)>(A&F)            7, simplification
 9. (NvB)>[(R&F)&(A&F)]    7, commutation
10. (NvB)>(R&F)            9, simplification
11. (NvB)>A                8, simplification
12. (NvB)>R               10, simplification
13. (NvB)>(A&R)        11,12, composition     

[Your teacher may allow you to skip some of those commutation steps.]

Edwin