The phrase "attested in both" is correct and usable in written English.
It can be used when referring to something that has been confirmed or verified in two different contexts or sources.
Example: "The findings were attested in both the scientific literature and the historical records."
Alternatives: "verified in both" or "confirmed in both".
Third, these linker-introduced phrases cannot undergo ellipsis, which can be attested in both finite and non-finite CPs.
The unnamed eagle is attested in both the Poetic Edda, compiled in the 13th century from earlier traditional sources, and the Prose Edda, written in the 13th century by Snorri Sturluson, while Veðrfölnir is solely attested in the Prose Edda.
The pair are attested in both the Poetic Edda, compiled in the 13th century from earlier traditional sources, and the Prose Edda, written in the 13th century by Snorri Sturluson.
Central to the main thesis of her book, Beatrice Groves describes the second iteration of the Temple's destruction as "arguably the most [End Page 377] important world event attested in detail by both scriptural and nonscriptural texts" (p. 89).
Both variants are attested in hieroglyphic inscriptions at the Maya sites of the time, and both are commonly referred to as "Classic Maya language".
Both Sága and Sökkvabekkr are attested in the Poetic Edda, compiled in the 13th century from earlier traditional sources, and in the Prose Edda, written in the 13th century by Snorri Sturluson.
Both Hjúki and Bil are solely attested in the Prose Edda, written in the 13th century by Snorri Sturluson.
David placed both his hands upon Mr. Evon and attested, in Creole, to the availability of funds for the trip and to our honesty.
The process is well attested in Africa.
In addition, a number of Median personal names are attested in various sources.
An early form of Canaanite is attested in the Tell el-Amarna letters (c. 1400 bc).
