In mathematics, a group is an algebraic structure consisting of a set of elements equipped with an operation that combines any two elements to form a third element and that satisfies four conditions called the group axioms, namely closure, associativity, identity and invertibility.
1 A lot depends on how much is included and the quality of the final project. 2  Finishing a basement in a relatively new home can start around $20 -$35 a square foot, or $30,000 -$70,000 for 1,500-2,000 square feet -- but it can cost $100,000 or more to create a fully-finished space.
Finishing Costs. Finishing refers to actually modeling a basement to live in. A basic basement costs only $20 or so per square foot to install once the excavation is complete, but it cannot be used for much except storage.Remodeling to add electrical, walls, floors and making the basement a room or rooms in the house can cost another $20 per square foot when all the costs are added.xcavation. Excavation refers to actually removing earth from under the foundation to make extra room for a basement. Excavation can be a very expensive process, costing $20,000 for enlarging a partial basement into a fuller size suitable for extra rooms. Excavation is also a variable cost.