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Product recycled or renewable content is the mass of certified recycled material relative to the overall mass of the device, not including packaging or in-box accessories.
$ rg --text '^\^.*\$$' --count patterns.txt.valid
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Definition 2 A homeomorphism between topological spaces \(X\) and \(Y\) is a bijective map \(f: X \to Y\) such that both \(f\) and its inverse \(f^{-1}: Y \to X\) are continuous. Explicitly: