Lemma 1 — an extreme point (x̂, ẑ) of ℋ equals (P_S, R_S) for S = {j : x̂_j > 0}

Initializing...

Lemma 1 — an extreme point (x̂, ẑ) of ℋ equals (P_S, R_S) for S = {j : x̂_j > 0} · Prove2Me