One of the following spaces is a metric.2 space (1 * (1 نقطة) The reals R with the co-countable topology O The reals R w
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One of the following spaces is a metric.2 space (1 * (1 نقطة) The reals R with the co-countable topology O The reals R w
One of the following spaces is a metric.2 space (1 * (1 نقطة) The reals R with the co-countable topology O The reals R with the co-finite topology The reals R with the left ray topology The reals R with the discrete topology O The reals R with the indiscrete topology O