Erect comes from the Latin word erectus, meaning  âupright, elevated, loftyâ or âeager, alert, aroused.â Erect is a verb, as in, it will take you years to erect your replica of the Eiffel Tower using only gum and toothpicks. Erect is also an adjective, as in something that is tall, firm, straight or rigid, like a half-dead plant that becomes more erect when you water it.
mathematical - characterized by the exactness or precision of mathematics; mathematical precision. math, mathematics, maths - a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement.
There are two possibilities. First, math somehow underlies the physical world, generates it. Or second, math is a human description of how we describe certain regularities in nature, and because there is so much possible mathematics, some equations are bound to fit. As for the essence of mathematics, there are four possibilities.