Also I utilize the definition symbol "≡" to determine capabilities. Most basic situation is file(x) ≡ y. I'm using it to state a romance to discover sums as opposed to stating it because the sum that we're deriving nevertheless it can be used to state equivalence. But I doubt this. https://fernandoxbcdf.blog-ezine.com/36553625/5-essential-elements-for-por-qué-es-bueno-leer-el-tarot