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.
Two types of garage flooring. Floor options. Rigid plastic snap-together tiles, rollout floor mats and epoxy coatings are just a few of the options for garage floors. Your concrete garage floor takes a lot of abuse from moisture, oil drips, chemical spills and road salt as it ages.