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Date: 9-8-2021
1020
Date: 6-7-2017
1440
Date: 8-7-2021
1547
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The topology induced by a topological space on a subset . The open sets of are the intersections , where is an open set of .
For example, in the relative topology of the interval induced by the Euclidean topology of the real line, the half-open interval is open since it coincides with . This example shows that an open set of the relative topology of need not be open in the topology of .
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علامات بسيطة في جسدك قد تنذر بمرض "قاتل"
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أول صور ثلاثية الأبعاد للغدة الزعترية البشرية
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قسم الشؤون الفكرية والثقافية يجري اختبارات مسابقة حفظ دعاء أهل الثغور
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