Where does this definition of set theory come from?
This entry for set theory is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Does set theory appear elsewhere on Lughet?
Yes — set theory appears under other sources or language pairs in Lughet's collection. See the list below.
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.
