1 Know what a set and an element are. 2  Write a mathematical statement with an equal sign or an inequality.  Identify what numbers belong to the set of natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers.
Discogenic spondylosis, which is often thought of as a form of spinal osteoarthritis, refers to a degenerative condition that affects the joints of the spine.
Discogenic pain is pain that occurs in a deteriorated disc in the spine. This pain could localize in the area of the damaged disc or it could spread into the extremities, causing radiating pain, numbness and tingling.