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Theorem cleqreli 2484
Description: Inference from extensionality principle for relations.
Hypotheses
Ref Expression
cleqreli.1 |- Rel A
cleqreli.2 |- Rel B
cleqreli.3 |- (<.x, y>. e. A <-> <.x, y>. e. B)
Assertion
Ref Expression
cleqreli |- A = B
Distinct variable group(s):   x,y,A   x,B,y

Proof of Theorem cleqreli
StepHypRef Expression
1 cleqreli.1 . . 3 |- Rel A
2 cleqreli.2 . . 3 |- Rel B
3 cleqrel 2483 . . 3 |- ((Rel A /\ Rel B) -> (A = B <-> A.xA.y(<.x, y>. e. A <-> <.x, y>. e. B)))
41, 2, 3mp2an 520 . 2 |- (A = B <-> A.xA.y(<.x, y>. e. A <-> <.x, y>. e. B))
5 cleqreli.3 . . 3 |- (<.x, y>. e. A <-> <.x, y>. e. B)
65ax-gen 677 . 2 |- A.y(<.x, y>. e. A <-> <.x, y>. e. B)
74, 6mpgbir 686 1 |- A = B
Colors of variables: wff set class
Syntax hints:   <-> wb 127  A.wal 672   = wceq 1091   e. wcel 1092  <.cop 1810  Rel wrel 2415
This theorem is referenced by:  inopab 2495  inxp 2496  cnvopab 2632  cnv0 2633  cnvi 2634  cnvsn 2636  cnvun 2642  cnvin 2643  cnvxp 2651  co02 2663  coass 2667  sbthcl 3361
This theorem was proved from axioms:  ax-1 3  ax-2 4  ax-3 5  ax-mp 6  ax-4 673  ax-5 674  ax-6 675  ax-7 676  ax-gen 677  ax-8 798  ax-9 799  ax-10 800  ax-11 801  ax-12 802  ax-13 804  ax-14 805  ax-16 922  ax-17 925  ax-ext 1074  ax-rep 1075  ax-pow 1077
This theorem depends on definitions:  df-bi 128  df-or 197  df-an 198  df-ex 679  df-sb 853  df-clab 1093  df-cleq 1097  df-clel 1099  df-v 1349  df-dif 1489  df-un 1490  df-in 1491  df-ss 1492  df-nul 1708  df-pw 1799  df-sn 1811  df-pr 1812  df-op 1815  df-opab 2098  df-xp 2424  df-rel 2425
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