document.write( "Question 981762: What is the proper way to solve this proof?
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Algebra.Com's Answer #602729 by Edwin McCravy(20055)\"\" \"About 
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document.write( "1. (T ● K) v (C ● E)\r\n" );
document.write( "2. K ﬤ ~E\r\n" );
document.write( "3. E ﬤ ~C             / T ● K\r\n" );
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document.write( "4. ~E v ~C            3, material implication\r\n" );
document.write( "5. ~(E ● C)           4, DeMorgan\r\n" );
document.write( "6. ~(C ● E)           5, commutation\r\n" );
document.write( "7. T ● K            1,6, disjunctive syllogism\r\n" );
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document.write( "Edwin
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