° < t :::; 1 , zero, we write f within the shape* the place gl , . . . , gm are compatible tender capabilities, and be aware that for all values of t . therefore / is isotopic to the linear mapping d/o, that is essentially isotop i ( ' t o the identification. This proves Lemma 2 . facts O F LEMMA 1 . W e could imagine that z = f ez ) = zero and that U is convex.
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