reserve X for set;
reserve a,b,c,k,m,n for Nat;
reserve i for Integer;
reserve r for Real;
reserve p for Prime;

theorem
  341 divides 2|^341-2
  proof
    341 = 11*31;
    hence thesis by PEPIN:4,INT_2:30,NAT_4:27,NUMERAL2:24,NUMBER02:20,21;
  end;
