**Horseshoe**^{[1]} (**⊃**, \supset in TeX) is a symbol used to represent:

It was used by Whitehead and Russell in *Principia Mathematica*. In Unicode the symbol is encoded U+2283 ⊃ SUPERSET OF (⊃, ⊃, ⊃).

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This page was last edited on 3 May 2022, at 00:48