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).
constructive criticism. A recommended set of instructions that aims to collaboratively improve the overall quality of a product or service. Often containing helpful and specific suggestions for positive change, constructive criticism is highly focused on a particular issue or set of issues, as opposed to providing general feedback on the item or organization as a whole. Use 'constructive criticism' in a Sentence.