Show A neither open nor closed in (R^2) , where A={(x,o): -1<x<1}

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- August 27th 2011, 05:27 PMrqeebShow A neither open nor closedShow A neither open nor closed in (R^2) , where A={(x,o): -1<x<1}
- August 27th 2011, 06:00 PMPlatoRe: Show A neither open nor closed
- August 27th 2011, 06:13 PMTheChazRe: Show A neither open nor closed
- August 27th 2011, 06:16 PMTheChazRe: Show A neither open nor closed
- August 27th 2011, 10:08 PMrqeebRe: Show A neither open nor closed
- August 27th 2011, 10:15 PMTheChazRe: Show A neither open nor closed