Aristotle (384-322 BC), an ancient Greek philosopher, believed that infinity could exist, because finite quantities were infinitely separable, but infinity could not be achieved.

/kloc-in the 20th century, a great Indian mathematician, Bascara, appeared, and his concept was close to that of theory.

The symbol of putting 8 horizontally as ∞ to represent infinity was first used in john wallis's paper Arithmetic Infinity (published in 1655).

Infinity in mathematics:

In mathematics, infinity is related to the following topics or concepts: mathematical limit, Alev number, class in set theory, Dai Dejin-infinite group, Russell paradox, hyperreal number, projective geometry, extended real number axis and absolute infinity. In some themes or concepts, infinity is considered as a concept that is added beyond the boundary, rather than a number.

In pop culture, Buzz Lightyear's mantra in Toy Story is "To infinity and beyond!" This sentence can also be regarded as the cry of set theorists who study large cardinality.

Reference to the above content: Baidu Encyclopedia-∞