Has your natural "doctor" received a degree in medicine or a postgraduate doctorate? If not, then no. The title Doctor is given to those who have completed sanctioned degree courses that are approved to award certain titles.
Yes a real number is a natural since real is natural so anything real is natural and so a real number is natural.
Yes, all natural numbers are real numbers. Natural numbers are a subset of real numbers, so not all real numbers are natural numbers.
The actor who plays the 10th Doctor's real name is David Tennant. However, if you mean what is the name of the Doctor himself, nobody knows his actual name.
No it's not real.
Yes. That's where the doctor is from.
The prime number of 11 is a real and natural number
The real name of the actor who played the Master in Doctor Who was Roger Delgado.
No, Bill Cosby is not a doctor. He is an entertainer, an actor.
No. Natural numbers are a proper subset of real numbers.
Natural number are a special kind of real number. They both are large without bounds. For every real number there is a larger natural number and for every natural number there is a larger real number.
Real
the name of the tenth doctor is david tennant .however this xmas in 2009 he will resign as the doctor and will be strongly missed and i myself am not watchin any other doctor who episodes that do not have david in them.the 11th doctor is going to be Matt smith.