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.
concrete floor types. Concrete flooring is one of the simpler varieties of flooring. Once you've chosen lowâmaintenance concrete, you only need to decide how you want it to look. Types of concrete differ in surfaces, colors, and aggregates. There are a wide variety of concrete flooring options for you to pick from, so don't delay! Start learning about the different concrete types with help from this section.