Identificatie
referentie code
Add. MS c/67/112
Titel
Letter from Augustus De Morgan to Robert Leslie Ellis
Datum(s)
- 28 Dec. 1855 (Vervaardig)
Beschrijvingsniveau
Stuk
Omvang en medium
1 folded sheet, 1 single sheet
Context
Naam van de archiefvormer
archiefbewaarplaats
Geschiedenis van het archief
Directe bron van verwerving of overbrenging
Inhoud en structuur
Bereik en inhoud
He admits that Columbus' egg is a myth. Discusses the relationship of obtuseness or acuteness of sides to obtuse and acute angles in a spherical triangle and proposes a theorem; has found nothing in the literature of the affections of oblique triangles. Accompanied by a drawing of a [spherical triangle?] with the note, "Yours came in after I had written the above. You are right, as here appears."