Theorem dfid2 2837

Description: Alternate definition of the identity relation.

Assertion

Ref	Expression
dfid2	|- I = {<.x, x>. | x = x}

Proof of Theorem dfid2

Step	Hyp	Ref	Expression
1		dfid3 2836	1 |- I = {<.x, x>. | x = x}

Syntax hints:   = wceq 956  {copab 2666  Icid 2831

This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-3 6  ax-mp 7  ax-7 962  ax-gen 963  ax-8 964  ax-10 966  ax-12 968  ax-14 970  ax-17 971  ax-4 973  ax-5o 975  ax-6o 978  ax-9o 1123  ax-10o 1140  ax-16 1210  ax-11o 1218  ax-ext 1459

This theorem depends on definitions:  df-bi 147  df-or 224  df-an 225  df-ex 981  df-sb 1172  df-clab 1464  df-cleq 1469  df-clel 1472  df-v 1812  df-un 2050  df-sn 2412  df-pr 2413  df-op 2416  df-opab 2667  df-id 2835

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