coi - Metamath Proof Explorer

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Syntax Definition coi 9549

Description: Extend class definition to include the canonical order isomorphism to an ordinal.

**Hypotheses**
Ref	Expression
cA	class 𝐴
cR	class 𝑅

**Assertion**
Ref	Expression
coi	class OrdIso(𝑅, 𝐴)

See definition df-oi 9550 for more information.

Colors of variables: wff setvar class