Here I prove that the Null Set Contains {I^2, I, Z} - See i^2 = i in analysis of the normal curve; See Riemann Sum in multiplication.[br][br]1) Z = Integers: i^2 = -1: n * -1 = {0,-1,-2,-3,...}: n = {0,1,2,3,...}[br][br]2) See Definitions Block - Entitled; "When" - Below the Proof = Null Set - Follow those Instructions to see proof.[br][br]3) Use Sliders on Bottom Left for Proof[br][br]4) Other Sliders are for the Red equations