Klee's theorem

Klee’s theorem states that in an n-dimensional space, a convex set (a shape where, for any two points inside, the entire line segment between them is also inside) can be reconstructed entirely from its "shadows" or projections onto n hyperplanes, provided these hyperplanes are placed in general position (not all parallel or aligned in a way that causes degenerate results). Essentially, by examining the shape from multiple directions, you can determine the original convex shape uniquely. This theorem highlights how multiple perspectives collectively encode the full structure of a convex object.