<span class="searchmatch">Mengenlehren</span> f plural of Mengenlehre...
IPA(key): /ˈmɛŋənˌleːʁə/ Mengenlehre f (genitive Mengenlehre, plural <span class="searchmatch">Mengenlehren</span>) (mathematics) set theory (mathematical theory of sets) Synonym: Mengentheorie...