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.
Radiographic signs of. degeneration of disc spaces adjacent to the site of a lumbar fu-. sion may reflect the natural history of lumbar spondylosis and. may only be meaningful when they are associated with clinical. symptoms of radiculopathy, discogenic pain, or stenosis refer-. able to that level 18.