If you mean the symbol â, it means âcontains as an elementâ. The expression Aâx is equivalent to xâA, which means that x is an element of A and implies that A is a set. See Element (mathematics).
Concrete Floor Care 101. Concrete flooring is one of the most durable types of flooring you can install in your homeânot to mention it adds an interesting design element that is both contemporary and uncommon. Itâs also easy to maintain if you follow a few simple guidelines.
Cost to Repair Different Types of Floors. The type of floor that is damaged will greatly impact the cost of your flooring repair project. Some of the most common flooring types include hardwood, carpet, laminate, tile and vinyl.any smaller blemishes can be sanded out; in these cases, replacement is not required. You may also encounter the following issues with a hardwood floor: 1  Sagging wood panels: Repair the subfloor, as well as the beams and joists holding up the floor. 2  This fix may require repairs to the structure of your home as well.