Real numbers are closed with respect to addition and multiplication....Complete
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System of whole numbers is closed under addition, this
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Notice that the
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Consider a set of Integer (1,2,3,4 ....) under Addition operation Ex : 1+2=3, 2+10= 12 , 12+25=37,.. Addition of any two integer number gives the integer value and ...
The round smiley faces are a closed set. No matter what operation is performed on round smiley faces, another round smiley face will be created. Thus, there are ...