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Theorem idsymrel 35799
Description: The identity relation is symmetric. (Contributed by AV, 19-Jun-2022.)
Assertion
Ref Expression
idsymrel SymRel I

Proof of Theorem idsymrel
StepHypRef Expression
1 cnvi 6002 . 2 I = I
2 reli 5700 . 2 Rel I
3 dfsymrel4 35789 . 2 ( SymRel I ↔ ( I = I ∧ Rel I ))
41, 2, 3mpbir2an 709 1 SymRel I
Colors of variables: wff setvar class
Syntax hints:   = wceq 1537   I cid 5461  ccnv 5556  Rel wrel 5562   SymRel wsymrel 35467
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 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2177  ax-ext 2795  ax-sep 5205  ax-nul 5212  ax-pr 5332
This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-tru 1540  df-ex 1781  df-nf 1785  df-sb 2070  df-mo 2622  df-eu 2654  df-clab 2802  df-cleq 2816  df-clel 2895  df-nfc 2965  df-ral 3145  df-rex 3146  df-rab 3149  df-v 3498  df-dif 3941  df-un 3943  df-in 3945  df-ss 3954  df-nul 4294  df-if 4470  df-sn 4570  df-pr 4572  df-op 4576  df-br 5069  df-opab 5131  df-id 5462  df-xp 5563  df-rel 5564  df-cnv 5565  df-dm 5567  df-rn 5568  df-res 5569  df-symrel 35782
This theorem is referenced by: (None)
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