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Theorem elabreximdv 23945
 Description: Class substitution in an image set. (Contributed by Thierry Arnoux, 30-Dec-2016.)
Hypotheses
Ref Expression
elabreximdv.1
elabreximdv.2
elabreximdv.3
Assertion
Ref Expression
elabreximdv
Distinct variable groups:   ,,   ,   ,,   ,   ,
Allowed substitution hints:   ()   (,)   ()   ()   (,)

Proof of Theorem elabreximdv
StepHypRef Expression
1 nfv 1626 . 2
2 nfv 1626 . 2
3 elabreximdv.1 . 2
4 elabreximdv.2 . 2
5 elabreximdv.3 . 2
61, 2, 3, 4, 5elabreximd 23944 1
 Colors of variables: wff set class Syntax hints:   wi 4   wb 177   wa 359   wceq 1649   wcel 1721  cab 2390  wrex 2667 This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1552  ax-5 1563  ax-17 1623  ax-9 1662  ax-8 1683  ax-6 1740  ax-7 1745  ax-11 1757  ax-12 1946  ax-ext 2385 This theorem depends on definitions:  df-bi 178  df-an 361  df-tru 1325  df-ex 1548  df-nf 1551  df-sb 1656  df-clab 2391  df-cleq 2397  df-clel 2400  df-nfc 2529  df-ral 2671  df-rex 2672  df-v 2918
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