theorem :: JORDAN5B:32

for f being constant standard special_circular_sequence
for j being Nat
for P being Subset of (TOP-REAL 2) st 1 <= j & j <= len (GoB f) & P = LSeg (((GoB f) * (j,1)),((GoB f) * (j,(width (GoB f))))) holds
P is_S-P_arc_joining (GoB f) * (j,1),(GoB f) * (j,(width (GoB f)))