document.write( "Question 1156254: 1. (A v B) ⊃ T
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Algebra.Com's Answer #778988 by Edwin McCravy(20056)\"\" \"About 
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document.write( "1. (A v B) ⊃ T		\r\n" );
document.write( "2. Z ⊃ (A v B)		\r\n" );
document.write( "3. T ⊃ W			\r\n" );
document.write( "4. ~W		/∴~Z\r\n" );
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document.write( "5. ~T           3,4,  Modus Tollens\r\n" );
document.write( "6. ~(A v B)     1,5,  Modus Tollens\r\n" );
document.write( "7. ~Z           2,6,  Modus Tollens.\r\n" );
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document.write( "Edwin
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