Syntax Definition wbr 2054

Description: Extend wff notation to include the general binary relation predicate. Note that the syntax is simply three class symbols in a row.

Hypotheses

Ref	Expression
cA	class A
cB	class B
cR	class R

Assertion

Ref	Expression
wbr	wff ARB

See definition df-br 2063 for more information.

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