You should submit corrected claims only when information has changed on the claim. For example: Errors were found involving diagnosis, procedure, date, or modifier. Claims contained missing, incorrect, or incomplete data according to our claim submission criteria.
In the context of Venn diagrams, the universe is not everything, but everything you're dealing with right now. Let's deal with the following list of things: moles, swans, rabid skunks, geese, worms, horses, Edmontosorum (a variety of duck-billed dinosaurs), platypusses, and a very fat cat.
In math and geometry, a vertex-- the plural of vertex is vertices -- is a point where two straight lines or edges intersect. In other words, a vertex is a mathematical word for a corner. Most geometrical shapes, whether two or three dimensional, possess vertices. For instance, a square has four vertices, which are its four corners. A vertex can also refer to a point in an angle or in a graphical representation of an equation.