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I am aware that there are similar threads to this, but since I am very new to this sort of math, I couldn't make sense of them too much.
Here's a proof(?):
Suppose $B$ is a convex set and $C$ is a convex hull of $A$ such that $A \subseteq B \subseteq C \subseteq \mathbb R^n.$ If $A = \{v_1, v_...