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    English: Diagram to demonstrate the number systems ℕ, ℤ, ℚ, ℝ, and ℂ as sub-sets of each other. Complex numbers (C) include the real numbers (R), which include the rationals (Q), which include the integers (Z), which include the natural numbers (N). The historical evolution was from N to C.
    Deutsch: Diagramm zur Veranschaulichung der Zahlenmengen ℕ, ℤ, ℚ, ℝ und ℂ als Untermengen voneinander. Historische Entwicklung N→Z→Q→R→C
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    Own work based on: Number-systems with C.png: 

    Author Mortalmoth
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    <?xml version="1.0"?>
    <svg width="1e3" height="500" xmlns="http://www.w3.org/2000/svg">
    <path fill="none" stroke="#000" stroke-width="2" d="m19
    249a480,240 0 1,0 0-1zm20,0a384,192 0 1,0 0-1zm20,0a266
    133 0 1,0 0-1zm20,0a170,85 0 1,0 0-1zm20,0a96,48 0 1,0 0-1z"/>
    <text x="133" y="276" font-size="66">ℕ<tspan x="323">ℤ</tspan><tspan
    x="473">ℚ</tspan><tspan x="673">ℝ</tspan><tspan x="873">ℂ</tspan></text>
    </svg>
    

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    Date/TimeThumbnailDimensionsUserComment
    current10:40, 7 September 2021Thumbnail for version as of 10:40, 7 September 20211,000 × 500 (421 bytes)Sarangsmaller // Editing SVG source code using c:User:Rillke/SVGedit.js
    09:37, 27 May 2021Thumbnail for version as of 09:37, 27 May 20211,000 × 500 (593 bytes)Mrmwde:special:permalink/212416856#Diagramm_zu_erweitern

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