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  "body": "\n## Summary\n\nThe Picard operator of an initial value problem $x' = f(t, x)$, $x(t_0) = x_0$ maps a curve $\\gamma$ to $t \\mapsto x_0 + \\int_{t_0}^{t} f(s, \\gamma(s))\\, ds$.\nIts fixed points are the solutions of the problem. See the [[definition|00WAVB68F9]].\n",
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