EntityQ2905392· pop 7· linked from 23 articlesweakly compact cardinalSign in to saveMahlo cardinal 𝜅 such that every height‐𝜅 tree either has a size‐𝜅 level or a size‐𝜅 branchConnectionselementary equivalenceEntitymathematicsEntityInternational Standard Book NumberEntitynatural numberEntitysetEntitydigital object identifierEntityPaul ErdősEntityJSTOROrganizationQ118398EntitycardinalityEntityAlfred TarskiEntitycardinal numberEntityif and only ifEntityQ22908627Entityuncountable setEntityZermelo–Fraenkel set theoryEntitypredicateEntityMathematical ReviewsEntitycompactness theoremEntitytransitive setEntityCategoriesLarge cardinals