reserve P for Subset of TOP-REAL 2,
  f,f1,f2,g for FinSequence of TOP-REAL 2,
  p,p1,p2,q,q1,q2 for Point of TOP-REAL 2,
  r1,r2,r19,r29 for Real,
  i,j,k,n for Nat;

theorem Th43:
  p <> q & (p`1 = q`1 or p`2 = q`2) implies <*p,q*> is being_S-Seq
by FINSEQ_3:94,FINSEQ_1:44,Lm2,Lm6,Th38;
