Dedekind cut

短语

[计] 戴德金割

词形变化

Dedekind cuts 复数 Dedekind cuts

释义与例句

n.
  1. 1.

    Any partition of the set of rational numbers into non-empty sets A and B such that all elements of A are less than all elements of B and A contains no greatest element; intended as a construction of a real number.

    数学

词源

Named after German mathematician Richard Dedekind (1831–1916), who introduced the concept (although a similar construction was used in Euclid's Elements to define proportional segments).

来源：wiktionary