Arlington County has an extensive network of bicycle infrastructure, including 50 miles of shared-use off-street trails. These multi-use trails are generally 10 feet wide with a solid yellow line striped down the middle to separate users.
Constructive mathematics. Idea. Broadly speaking, constructive mathematics is mathematics done without the principle of excluded middle (or other principles, such as the full axiom of choice, that imply it).
Noun[edit] constructive force â(uncountable) (law) Action on the part of one party which will be treated by a court as equivalent to the use of force in determining whether that party has acted improperly with respect to another.