Theorem dmv 5341

Description: The domain of the universe is the universe. (Contributed by NM, 8-Aug-2003.)

Assertion

Ref	Expression
dmv	|- dom _V = _V

Proof of Theorem dmv

Step	Hyp	Ref	Expression
1		ssv 3625	. 2 |- dom _V C_ _V
2		dmi 5340	. . 3 |- dom _I = _V
3		ssv 3625	. . . 4 |- _I C_ _V
4		dmss 5323	. . . 4 |- ( _I C_ _V -> dom _I C_ dom _V )
5	3, 4	ax-mp 5	. . 3 |- dom _I C_ dom _V
6	2, 5	eqsstr3i 3636	. 2 |- _V C_ dom _V
7	1, 6	eqssi 3619	1 |- dom _V = _V

Syntax hints:   = wceq 1483   _Vcvv 3200   C_ wss 3574   _I cid 5023   dom cdm 5114

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-sep 4781  ax-nul 4789  ax-pr 4906

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ral 2917  df-rex 2918  df-rab 2921  df-v 3202  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-nul 3916  df-if 4087  df-sn 4178  df-pr 4180  df-op 4184  df-br 4654  df-opab 4713  df-id 5024  df-xp 5120  df-rel 5121  df-dm 5124

This theorem is referenced by: (None)