Question Number 127537 by mohammad17 last updated on 30/Dec/20
$${if}\:{a}\:{group}\:{contains}\:{all}\:{of}\:{the}\:{points}\:{that}\: \\ $$$${you}\:{collect}\:{then}\:{its}\:{a}\:{closed}\:{group}\: \\ $$$$ \\ $$$${prove}\:{this}\:{in}\:{complex}\:{number}\:? \\ $$
Commented by mohammad17 last updated on 30/Dec/20
$$???? \\ $$