Theorem eliniseg2 5123

Description: Eliminate the class existence constraint in eliniseg 5113. (Contributed by Mario Carneiro, 5-Dec-2014.) (Revised by Mario Carneiro, 17-Nov-2015.)

Assertion

Ref	Expression
eliniseg2	|- ( Rel A -> ( C e. ( `' A " { B } ) <-> C A B ) )

Proof of Theorem eliniseg2

Step	Hyp	Ref	Expression
1		relcnv 5121	. . 3 |- Rel `' A
2		elrelimasn 5109	. . 3 |- ( Rel `' A -> ( C e. ( `' A " { B } ) <-> B `' A C ) )
3	1, 2	ax-mp 5	. 2 |- ( C e. ( `' A " { B } ) <-> B `' A C )
4		relbrcnvg 5122	. 2 |- ( Rel A -> ( B `' A C <-> C A B ) )
5	3, 4	bitrid 192	1 |- ( Rel A -> ( C e. ( `' A " { B } ) <-> C A B ) )

Syntax hints:   -> wi 4   <-> wb 105   e. wcel 2202   {csn 3673   class class class wbr 4093   `'ccnv 4730   "cima 4734   Rel wrel 4736

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-14 2205  ax-ext 2213  ax-sep 4212  ax-pow 4270  ax-pr 4305

This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-nf 1510  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-ral 2516  df-rex 2517  df-v 2805  df-sbc 3033  df-un 3205  df-in 3207  df-ss 3214  df-pw 3658  df-sn 3679  df-pr 3680  df-op 3682  df-br 4094  df-opab 4156  df-xp 4737  df-rel 4738  df-cnv 4739  df-dm 4741  df-rn 4742  df-res 4743  df-ima 4744

This theorem is referenced by:  isunitd  14184