document.write( "Question 1193810: Prove directly - NO Conditional Proof or Indirect Proof. \r
\n" ); document.write( "\n" ); document.write( " 1. R ⊃ A / R ⊃ ( A v W ) \n" ); document.write( "

Algebra.Com's Answer #826325 by math_tutor2020(3816) $\"\"$ $\"About$

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\n" ); document.write( "Another approach:
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Number	Statement	Line(s) Used	Reason
1	R ⊃ A
:.	R ⊃ (A v W)
2	~R v A	1	Material Implication
3	(~R v A) v W	2	Addition
4	~R v (A v W)	3	Association
5	R ⊃ (A v W)	4	Material Implication

\n" ); document.write( "For more information, check out the various rules of inference and rules of replacement as shown in the link below.
\n" ); document.write( "https://logiccurriculum.com/2019/02/09/rules-for-proofs/
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