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 describes the misalignment of the vertebrae of the spine due to the deterioration of joints and discs to hold the vertebrae in place. As the joints and discs deteriorate due to spondylosis, a vertebra might slip out of alignment, either moving into the spinal canal or over top of the vertebra below it.