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Syntax Definition c-bnj18 30760
Description: Extend class notation with the function giving: the transitive closure of X in A by R. (New usage is discouraged.)
Hypotheses
Ref Expression
cA class A
cR class R
cX class X
Assertion
Ref Expression
c-bnj18 class trCl ( X , A , R )
See definition df-bnj18 30761 for more information.
Colors of variables: wff setvar class
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