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.
Lumbar spondylosis and cervical spondylosis are the most common. Thoracic spondylosis frequently does not cause symptoms. Lumbosacral spondylosis is spondylosis which affects both the lumbar spine and the sacral spine (below the lumbar spine, in the midline between the buttocks).Multilevel spondylosis means that these changes affect multiple vertebrae in the spine.umbar spondylosis and cervical spondylosis are the most common. Thoracic spondylosis frequently does not cause symptoms. Lumbosacral spondylosis is spondylosis which affects both the lumbar spine and the sacral spine (below the lumbar spine, in the midline between the buttocks).