"A spin will result from a slip or a skid, in other words any yawed flight." ​Not entirely correct. Prior to entering the skid, the airplane could be yawed or slipping. It also could also be in coordinated flight. No matter, it must be skidding to spin.

When you have time, I can explain it to you. Or you could get a competent instructor, take an airplane to sufficient altitude and try it. Never skid the airplane and it won't spin.