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  "body": "\n## Statement\n\nLet $n$ be a positive integer.\nThen the diagonal [[Ramsey number|01DSVCRF6X]] $R(n,n)$ satisfies\n\n$$R(n,n) \\ge \\frac{n}{e\\sqrt{2}}\\, 2^{n/2}.$$\n\n## Remarks\n\nThe bound shows that $R(n,n)$ grows at least exponentially in $n$, with base $\\sqrt{2}$.\nIt is proved by the probabilistic method, which colours the edges at random.\n",
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