🌐EnglishEnglishDeutschFrançaisItalianoPolskiPortuguêsTürkçeРусский한국어中文日本語EntityQ1930577· pop 9· linked from 10 articlesHerbrand's theoremreduction of first-order mathematical logic to propositional logicConnectionscut-eliminationEntityHerbrand structureEntityCategoriesMetatheoremsProof theoryTheorems in the foundations of mathematics