Definition df-wsucOLD 31757

Description: Define the concept of a successor in a well-founded set. (Contributed by Scott Fenton, 13-Jun-2018.) Obsolete version of df-wsuc 31756 as of 10-Oct-2021. (New usage is discouraged.)

Assertion

Ref	Expression
df-wsucOLD	|- wsucOLD ( R , A , X ) = sup ( Pred ( `' R , A , X ) , A , `' R )

Detailed syntax breakdown of Definition df-wsucOLD

Step	Hyp	Ref	Expression
1		cA	. . 3 class A
2		cR	. . 3 class R
3		cX	. . 3 class X
4	1, 2, 3	cwsucOLD 31753	. 2 class wsucOLD ( R , A , X )
5	2	ccnv 5113	. . . 4 class `' R
6	1, 5, 3	cpred 5679	. . 3 class Pred ( `' R , A , X )
7	6, 1, 5	csup 8346	. 2 class sup ( Pred ( `' R , A , X ) , A , `' R )
8	4, 7	wceq 1483	1 wff wsucOLD ( R , A , X ) = sup ( Pred ( `' R , A , X ) , A , `' R )

This definition is referenced by: (None)