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Theorem elssabg 3893
 Description: Membership in a class abstraction involving a subset. Unlike elabg 2682, does not have to be a set. (Contributed by NM, 29-Aug-2006.)
Hypothesis
Ref Expression
elssabg.1
Assertion
Ref Expression
elssabg
Distinct variable groups:   ,   ,   ,
Allowed substitution hints:   ()   ()

Proof of Theorem elssabg
StepHypRef Expression
1 ssexg 3887 . . . 4
21expcom 109 . . 3
4 sseq1 2960 . . . 4
5 elssabg.1 . . . 4
64, 5anbi12d 442 . . 3
76elab3g 2687 . 2
83, 7syl 14 1
 Colors of variables: wff set class Syntax hints:   wi 4   wa 97   wb 98   wceq 1242   wcel 1390  cab 2023  cvv 2551   wss 2911 This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101  ax-io 629  ax-5 1333  ax-7 1334  ax-gen 1335  ax-ie1 1379  ax-ie2 1380  ax-8 1392  ax-10 1393  ax-11 1394  ax-i12 1395  ax-bndl 1396  ax-4 1397  ax-17 1416  ax-i9 1420  ax-ial 1424  ax-i5r 1425  ax-ext 2019  ax-sep 3866 This theorem depends on definitions:  df-bi 110  df-tru 1245  df-nf 1347  df-sb 1643  df-clab 2024  df-cleq 2030  df-clel 2033  df-nfc 2164  df-v 2553  df-in 2918  df-ss 2925 This theorem is referenced by: (None)
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