quae erant demonstranda

Etymology
From.

Etymology
(nominative neuter plural of ) + (third-person plural imperfect active indicative of ) +  (nominative neuter plural of, future participle of )

Phrase

 * 1) * 1986: Girolamo Saccheri, George Bruce Halsted (translator), Girolamo Saccheri’s Euclides vindicatus, page 24 (AMS Bookstore; ISBN 0‒8284‒0289‒2, 978‒0‒8284‒0289‒7)
 * "la"
 * "la"

- Itaque constat junctam CD aequalem fore, aut mino- [4] rem, aut majorem ipsa AB, prout anguli ad eandem CD fuerint aut recti, aut obtusi, aut acuti. Quae erant demonstranda.