Which of the following is correct for a space X: * If A is closed, then...

 

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Which of the following is correct for a space X: * If A is closed, then A is not open If A is not closed, then A is open If A is not closed, then X\A is not оpen If A is not open, then A is closed If A is open, then A is not closed Which of the following is correct for a space X: * If A is closed, then A is not open If A is not closed, then A is open If A is not closed, then X\A is not оpen If A is not open, then A is closed If A is open, then A is not closed