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.
spondylolisthesis - a forward dislocation of one vertebra over the one beneath it producing pressure on spinal nerves. dislocation - a displacement of a part (especially a bone) from its normal position (as in the shoulder or the vertebral column)