let p be 5 _or_greater Prime; for z being Element of EC_WParam p holds [0,1,0] is Element of EC_SetAffCo (z,p)
let z be Element of EC_WParam p; [0,1,0] is Element of EC_SetAffCo (z,p)
[0,1,0] is Element of EC_SetProjCo ((z `1),(z `2),p)
by EC_PF_1:42;
then
[0,1,0] in { P where P is Element of EC_SetProjCo ((z `1),(z `2),p) : ( P `3_3 = 1 or P = [0,1,0] ) }
;
hence
[0,1,0] is Element of EC_SetAffCo (z,p)
; verum