Question #319722

Find the power set of each of these sets, where a and b are distinct elements. a) {a} b) {a, b} c) {∅,{∅}}


1
Expert's answer
2022-03-29T17:32:02-0400

Powersetisthesetofallsubsetsa:2{a}={,{a}}b:2{a,b}={,{a},{b},{a,b}}c:2{,{}}=[inthepreviousanswersubstituteawithandbwith{}]={,{},{{}},{,{}}}Power\,\,set\,\,is\,\,the\,\,set\,\,of\,\,all\,\,subsets\\a:2^{\left\{ a \right\}}=\left\{ \emptyset ,\left\{ a \right\} \right\} \\b:2^{\left\{ a,b \right\}}=\left\{ \emptyset ,\left\{ a \right\} ,\left\{ b \right\} ,\left\{ a,b \right\} \right\} \\c:2^{\left\{ \emptyset ,\left\{ \emptyset \right\} \right\}}=\left[ \begin{array}{c} in\,\,the\,\,previous\,\,answer\\ substitute\,\,a\,\,with\,\,\emptyset\\ and\,\,b\,\,with\,\,\left\{ \emptyset \right\}\\\end{array} \right] =\left\{ \emptyset ,\left\{ \emptyset \right\} ,\left\{ \left\{ \emptyset \right\} \right\} ,\left\{ \emptyset ,\left\{ \emptyset \right\} \right\} \right\}


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