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Syntax Definition ctp 4128
Description: Extend class notation to include unordered triplet.
Hypotheses
Ref Expression
cA class 𝐴
cB class 𝐵
cC class 𝐶
Assertion
Ref Expression
ctp class {𝐴, 𝐵, 𝐶}

See definition df-tp 4129 for more information.

Colors of variables: wff setvar class
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