2 Noun 0 Verb 0 Adj. 0 Adv.
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ZH马掌Noun
ZH
马蹄铁,又称马掌,是马、牛等牲口装订在蹄上的铁製蹄型物。
马蹄铁
bn:00044869n Concept
EN
Horseshoe is a symbol used to represent: Material conditional in propositional logic Superset in set theoryIt was used by Whitehead and Russell in Principia Mathematica.
馬蹄馬蹄鐵
bn:13890687n Concept
English:
symbol