411 REFERENCE · Wiktionary
IP set
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Disputed. Perhaps an abbreviation of infinite-dimensional parallelepiped, or of en idempotent.
Noun
en math A set of natural numbers that contains all finite sums of some infinite set.
Anagrams
en eipst piets piste septi- spite stipe