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Syntax Definition c-bnj14 30754
Description: Extend class notation with the function giving: the class of all elements of A that are "smaller" than X according to R. (New usage is discouraged.)
Hypotheses
Ref Expression
cA class A
cR class R
cX class X
Assertion
Ref Expression
c-bnj14 class pred ( X , A , R )
See definition df-bnj14 30755 for more information.
Colors of variables: wff setvar class
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