document.write( "Question 1142574: Solve this proof below with formal proof these are all valid arguments. All premises are separated by commas.\r
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Algebra.Com's Answer #763293 by math_helper(2461) $\"\"$ $\"About$

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document.write( "1.  ~P        Premise
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document.write( "2.  ~Q        Premise
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document.write( "3.  ~P & ~Q   1,2 Conjunction (CONJ)
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document.write( "4.  ~(P v Q)  3 DeMorgan's (DeM)\r
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