document.write( "Question 987042: Is the sum of an odd number and an odd number closed under addition? \r
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Algebra.Com's Answer #607818 by macston(5194)\"\" \"About 
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\n" ); document.write( "The question as stated is unclear.
\n" ); document.write( "The SET of odd numbers is NOT closed under addition
\n" ); document.write( "(the sum of two odd numbers do not equal an odd number)
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