YES Problem: f(x,y) -> x g(a()) -> h(a(),b(),a()) i(x) -> f(x,x) h(x,x,y) -> g(x) Proof: Matrix Interpretation Processor: dim=1 interpretation: [h](x0, x1, x2) = x0 + 6x1 + 4x2 + 2, [a] = 2, [b] = 0, [i](x0) = 4x0 + 4, [f](x0, x1) = x0 + 2x1, [g](x0) = 7x0 + 2 orientation: f(x,y) = x + 2y >= x = x g(a()) = 16 >= 12 = h(a(),b(),a()) i(x) = 4x + 4 >= 3x = f(x,x) h(x,x,y) = 7x + 4y + 2 >= 7x + 2 = g(x) problem: f(x,y) -> x h(x,x,y) -> g(x) Matrix Interpretation Processor: dim=3 interpretation: [1 0 0] [1 0 0] [1 0 0] [h](x0, x1, x2) = [0 0 0]x0 + [0 0 0]x1 + [0 0 0]x2 [0 0 0] [0 0 0] [0 0 0] , [1 0 0] [1] [f](x0, x1) = x0 + [0 0 0]x1 + [0] [0 0 0] [0], [1 0 0] [g](x0) = [0 0 0]x0 [0 0 0] orientation: [1 0 0] [1] f(x,y) = x + [0 0 0]y + [0] >= x = x [0 0 0] [0] [2 0 0] [1 0 0] [1 0 0] h(x,x,y) = [0 0 0]x + [0 0 0]y >= [0 0 0]x = g(x) [0 0 0] [0 0 0] [0 0 0] problem: h(x,x,y) -> g(x) Matrix Interpretation Processor: dim=3 interpretation: [1 0 0] [1 0 0] [1 0 0] [1] [h](x0, x1, x2) = [0 0 0]x0 + [0 0 0]x1 + [0 0 0]x2 + [0] [0 0 0] [0 0 0] [0 0 0] [0], [1 0 0] [g](x0) = [0 0 0]x0 [0 0 0] orientation: [2 0 0] [1 0 0] [1] [1 0 0] h(x,x,y) = [0 0 0]x + [0 0 0]y + [0] >= [0 0 0]x = g(x) [0 0 0] [0 0 0] [0] [0 0 0] problem: Qed