Theorem otex 5357

Description: An ordered triple of classes is a set. (Contributed by NM, 3-Apr-2015.)

Assertion

Ref	Expression
otex	⊢ ⟨𝐴, 𝐵, 𝐶⟩ ∈ V

Proof of Theorem otex

Step	Hyp	Ref	Expression
1		df-ot 4576	. 2 ⊢ ⟨𝐴, 𝐵, 𝐶⟩ = ⟨⟨𝐴, 𝐵⟩, 𝐶⟩
2		opex 5356	. 2 ⊢ ⟨⟨𝐴, 𝐵⟩, 𝐶⟩ ∈ V
3	1, 2	eqeltri 2909	1 ⊢ ⟨𝐴, 𝐵, 𝐶⟩ ∈ V

Syntax hints:   ∈ wcel 2114  Vcvv 3494  ⟨cop 4573  ⟨cotp 4575

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 2793  ax-sep 5203  ax-nul 5210  ax-pr 5330

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-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-v 3496  df-dif 3939  df-un 3941  df-in 3943  df-ss 3952  df-nul 4292  df-if 4468  df-sn 4568  df-pr 4570  df-op 4574  df-ot 4576

This theorem is referenced by:  euotd  5403  splval  14113  splcl  14114  idaval  17318  idaf  17323  eldmcoa  17325  coaval  17328  mamufval  20996  msrval  32785  msrf  32789  mapdhval  38875