If you're going to be technical, you can use full set-builder notation to express the above mathematical set. In set-builder notation, the previous set looks like this: The above is pronounced as the set of all x, such that x is an element of the natural numbers and x is less than 10. The vertical bar is usually pronounced as such that, and it comes between the name of the variable you're using to stand for the elements and the rule that tells you what those elements actually are.
Hand-dermatitis?: Red sores all over the palm of hands are more often caused by a contact allergy, hand-dermatitis (eczema), or infections such as scabies. The diagnosis is needed as the treatment will differ based on the cause. A certain virus can cause sores on the hands as a part of hand-foot-mouth disease.
What is hand-foot-and-mouth disease? Hand-foot-and-mouth disease is an illness caused by a virus that results in a distinctive rash. It causes small, blister-like bumps in the mouth, and a rash on the palms of the hands and feet. The rash may also appear in the diaper area and on the legs and arms. The lesions in the mouth usually appear at the back of the throat.