- QI has been unable to find this precise quotation in the writings of Ayn Rand. However, QI hypothesizes that the sentence was derived from a dialog in her best-selling 1943 novel “The Fountainhead”.
The question isn’t who is going to let me; it’s who is going to stop me.
Ayn Rand
- Sequence (Wikipedia)
In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed and order matters. Like a set, it contains members (also called elements, or terms). The number of elements (possibly infinite) is called the length of the sequence. Unlike a set, the same elements can appear multiple times at different positions in a sequence, and unlike a set, the order does matter. Formally, a sequence can be defined as a function from natural numbers (the positions of elements in the sequence) to the elements at each position. The notion of a sequence can be generalized to an indexed family, defined as a function from an arbitrary index set.