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.
DEFINITION OF LUMBAR SPONDYLOSIS. Lumbar spondylosis is a medical situation in which the patient suffers from serious back pains occurred due to sliding of vertebrae in the lumbar region of the vertebral column. It may also happen due to any external injury or osteophytes (bone spurs).