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Any Sobolev function of type ( m , 2 ) {\displaystyle (m,2)} on R n {\displaystyle \mathbb {R} ^{n}} where m > n / 2 {\displaystyle m>n/2} , is in C 0 0 ( R n ) {\displaystyle C_{0}^{0}(\mathbb {R} ^{n})} .