document.write( "Question 982023: Using Conditional Proof I need help i'm very lost\r
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Algebra.Com's Answer #602967 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
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document.write( " 1.  N>(F&A)\r\n" );
document.write( " 2.  B>(R&F)\r\n" );
document.write( "           /(NvB)>(A&R) \r\n" );
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document.write( " 3. (NvB)>(F&A)            1, addition\r\n" );
document.write( " 4. (BvN)>(R&F)            2, addition\r\n" );
document.write( " 5. (NvB)>(R&F)            4, commutation\r\n" );
document.write( " 6. (NvB)>[(F&A)&(R&F)]  3,5, composition  \r\n" );
document.write( " 7. (NvB)>[(A&F)&(R&F)]    6, commutation\r\n" );
document.write( " 8. (NvB)>(A&F)            7, simplification\r\n" );
document.write( " 9. (NvB)>[(R&F)&(A&F)]    7, commutation\r\n" );
document.write( "10. (NvB)>(R&F)            9, simplification\r\n" );
document.write( "11. (NvB)>A                8, simplification\r\n" );
document.write( "12. (NvB)>R               10, simplification\r\n" );
document.write( "13. (NvB)>(A&R)        11,12, composition     \r\n" );
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document.write( "[Your teacher may allow you to skip some of those commutation steps.]\r\n" );
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document.write( "Edwin
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