Sorgenfrey line

Summary

Sorgenfrey line is a Hausdorff space^[1]. It draws 8 Wikipedia views per month (hausdorff_space category, ranking #3 of 3).^[2]

Key Facts

• Sorgenfrey line's instance of is recorded as Hausdorff space^[3].
• Sorgenfrey line's instance of is recorded as perfectly normal space^[4].
• Sorgenfrey line's instance of is recorded as separable space^[5].
• Sorgenfrey line's instance of is recorded as first-countable space^[6].
• Sorgenfrey line's instance of is recorded as Lindelöf space^[7].
• Sorgenfrey line's instance of is recorded as strongly zero-dimensional Tychonoff space^[8].
• Robert Sorgenfrey is named after Sorgenfrey line^[9].
• Sorgenfrey line's has part is recorded as lower limit topology^[10].
• Sorgenfrey line's ProofWiki ID is recorded as Definition:Sorgenfrey_Line^[11].
• Sorgenfrey line's PlanetMath ID is recorded as SorgenfreyLine^[12].
• Sorgenfrey line's Great Russian Encyclopedia portal ID is recorded as priamaia-zorgenfreia-2a6ed8^[13].
• Sorgenfrey line's underlying structure is recorded as set of real numbers^[14].

Why It Matters

Sorgenfrey line draws 8 Wikipedia views per month (hausdorff_space category, ranking #3 of 3).^[2] It has Wikipedia articles in 8 language editions, a strong signal of global cultural recognition.^[15]