Linear Combination
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Span
Theorem
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Example
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Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle v\in W\mbox{ if it is a linear combination of span}(u_1^{},u_2^{})}