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Theorem disjALTVid 38801
Description: The class of identity relations is disjoint. (Contributed by Peter Mazsa, 20-Jun-2021.)
Assertion
Ref Expression
disjALTVid Disj I

Proof of Theorem disjALTVid
StepHypRef Expression
1 cosscnvid 38526 . . 3 I = I
21eqimssi 3990 . 2 I ⊆ I
3 reli 5765 . 2 Rel I
4 dfdisjALTV2 38760 . 2 ( Disj I ↔ ( ≀ I ⊆ I ∧ Rel I ))
52, 3, 4mpbir2an 711 1 Disj I
Colors of variables: wff setvar class
Syntax hints:  wss 3897   I cid 5508  ccnv 5613  Rel wrel 5619  ccoss 38223   Disj wdisjALTV 38257
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2113  ax-9 2121  ax-11 2160  ax-ext 2703  ax-sep 5232  ax-nul 5242  ax-pr 5368
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-sb 2068  df-clab 2710  df-cleq 2723  df-clel 2806  df-ral 3048  df-rex 3057  df-rab 3396  df-v 3438  df-dif 3900  df-un 3902  df-in 3904  df-ss 3914  df-nul 4281  df-if 4473  df-sn 4574  df-pr 4576  df-op 4580  df-br 5090  df-opab 5152  df-id 5509  df-xp 5620  df-rel 5621  df-cnv 5622  df-co 5623  df-dm 5624  df-rn 5625  df-res 5626  df-coss 38456  df-cnvrefrel 38572  df-disjALTV 38751
This theorem is referenced by:  disjALTVidres  38802  disjALTVinidres  38803  disjALTVxrnidres  38804  eqvrelid  38835  detid  38839  eqvrelcossid  38840  petid2  38862
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