The phrase "wert an element of" is often used in mathematical contexts to indicate that "wert" is a member or part of a larger set or equation. The spelling of "wert" may seem unusual, but it follows common conventions for representing certain sounds in English using the International Phonetic Alphabet (IPA). Specifically, the "w" represents the voiced labio-velar approximant sound, while the "er" represents the rhotic vowel sound typically pronounced in American English. Together, they create the distinct phonetic sound of "wert."