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.
Sheet Vinyl Flooring's Many Benefits. Sheet and tile vinyl flooring are one of your best bathroom flooring options. Sheet vinyl flooring is just like a vinyl version of carpeting: it is available in wide rolls of six or twelve feet. For rooms wider than these sizes, sections of sheet vinyl are fused together.