🇬🇧 en de 🇩🇪

if and only if conjunction

  /ɪf ən(d) ˈoʊn.li ɪf/ , /ɪf ən(d) ˈəʊn.li ɪf/
  • (logic, mathematics) Is equivalent to; implies and is implied by; is true and false in the same cases as.
 dann und nur dann, wenn, genau dann, wenn
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