reserve i,j,k,n,m,l,s,t for Nat;
reserve a,b for Real;
reserve F for real-valued FinSequence;
reserve z for Complex;
reserve x,y for Complex;
reserve r,s,t for natural Number;
reserve p,q for natural Number;
reserve i0,i,i1,i2,i4 for Integer;
reserve x for set;
reserve p for Prime;
reserve i for Nat;
reserve x for Real;

theorem
  n > 0 implies 0 |^ n = 0
proof
  assume n>0;
  then n>=1+0 by NAT_1:13;
  hence thesis by Th11;
end;
