The plurality "two" refers to a collection of two objects, for example two chairs, two pencils, two houses, etc. The number "two" is, however, the class of all instances of the "plurality two" and so is a "plurality of pluralities" and the logical error which had been made in not recognising this meant that before Frege's Grundlagen nobody had managed to give a logically correct definition of "number".
Ang mayorya "dalawang" ay tumutukoy sa isang koleksyon ng dalawang bagay, halimbawa dalawang upuan, dalawang pencils, dalawang bahay, atbp Ang mga numero ng "dalawang" ay, gayunman, ang mga klase ng lahat ng mga pangyayari ng "mayorya ng dalawang" at sa gayon ay isang "mayorya ng mga pluralities" at ang mga logical error na kung saan nagkaroon na ginawa sa hindi recognising ito sinadya na bago Frege's Grundlagen walang tao had pinamamahalaang na magbigay ng isang logically tamang kahulugan ng "number".