This simply means “if p, then q” is drawn from the single premise “if not q . Similarly, a statements converse and its inverse are always either both true or both false

    هل يصح ةضع الجولسيد ف الابط
  1. We can restate that as If something is a bat, then it is a mammal
  2. If you do not work, then you will not get paid
  3. If n - ab, then n - a and n - b
  4. C