Question Number 29014 by A.Ayo last updated on 03/Feb/18
$${Prove}\:\:{that}\:{A}\cup{A}^{{c}} ={A} \\ $$
Commented by Tinkutara last updated on 03/Feb/18
$${A}\cup{A}'={U} \\ $$
Commented by A.Ayo last updated on 03/Feb/18
please explain it
Commented by Tinkutara last updated on 04/Feb/18
This is complement law.